diff --git a/@sammo/game_logic/src/City.ts b/@sammo/game_logic/src/City.ts
index 409145f..64fc1dc 100644
--- a/@sammo/game_logic/src/City.ts
+++ b/@sammo/game_logic/src/City.ts
@@ -16,6 +16,10 @@ export class City extends LazyEntityUpdater<ICityEntity>{
         this._raw = raw;
     }
 
+    public bootstrap(){
+        //do nothing;
+    }
+
     get id(): CityID {
         return this._raw.id;
     }
diff --git a/@sammo/game_logic/src/Entity/GameEnvEntity.ts b/@sammo/game_logic/src/Entity/GameEnvEntity.ts
index d79f5bb..08ee0ef 100644
--- a/@sammo/game_logic/src/Entity/GameEnvEntity.ts
+++ b/@sammo/game_logic/src/Entity/GameEnvEntity.ts
@@ -1,3 +1,5 @@
+import type { IntYear, IntYearMonth } from "@/defs.js";
+
 export type UnitedGameState = 'onGame' | 'united' | 'onEvent' | 'endEvent';
 
 export interface IGameEnvEntity {
@@ -10,8 +12,9 @@ export interface IGameEnvEntity {
     gameStartYear: number;
     gameStartMonth: number;
 
-    year: number;
-    month: number;
+    year: IntYear;
+    month: IntYearMonth;
+    yearMonth: IntYearMonth;
 
     secondsPerTurn: number;
 
diff --git a/@sammo/game_logic/src/Entity/GeneralEntity.ts b/@sammo/game_logic/src/Entity/GeneralEntity.ts
index 65edd88..b066efc 100644
--- a/@sammo/game_logic/src/Entity/GeneralEntity.ts
+++ b/@sammo/game_logic/src/Entity/GeneralEntity.ts
@@ -1,4 +1,4 @@
-import type { CityID, DiplomaticPermission, FractionalRange, GeneralID, GeneralName, IntMonth, IntYear, ItemID, ItemKeyType, NationID, NpcType, OfficerLevel, PersonalityType, SpecialityDomesticType, SpecialityWarType, SquadID, URILike, UserID, UserName } from "../defs.js";
+import type { CityID, DiplomaticPermission, FractionalRange, GeneralID, GeneralName, IntMonth, IntYear, IntYearMonth, ItemID, ItemKeyType, NationID, NpcType, OfficerLevel, PersonalityType, SpecialityDomesticType, SpecialityWarType, SquadID, URILike, UserID, UserName } from "../defs.js";
 
 export interface IGeneralEntity {
     id: GeneralID;
@@ -49,7 +49,7 @@ export interface IGeneralEntity {
     age: IntYear;
     startAge: IntYear;
 
-    nationJoinedRelYear: IntYear;
+    nationJoinedYearMonth: IntYearMonth;
 
     betray: number;
 
@@ -69,4 +69,9 @@ export interface IGeneralEntity {
         bornyear: number;
         deadyear: number;
     }
+
+    aux: {
+        lastBattleDate?: Date;
+        lastBattleYearMonth?: IntYearMonth;
+    }
 }
\ No newline at end of file
diff --git a/@sammo/game_logic/src/Entity/NationEntity.ts b/@sammo/game_logic/src/Entity/NationEntity.ts
index 6d7576d..0f615aa 100644
--- a/@sammo/game_logic/src/Entity/NationEntity.ts
+++ b/@sammo/game_logic/src/Entity/NationEntity.ts
@@ -51,6 +51,9 @@ export interface INationEntity{
         availableWarSettingCnt?: number;
         prevIncomeGold: number;
         prevIncomeRice: number;
+
+        lastBattleDate?: Date;
+        lastBattleYearMonth?: IntYearMonth;
     }
 
     //TODO: 타입 정의
diff --git a/@sammo/game_logic/src/Errors.ts b/@sammo/game_logic/src/Errors.ts
index e69de29..8a938e0 100644
--- a/@sammo/game_logic/src/Errors.ts
+++ b/@sammo/game_logic/src/Errors.ts
@@ -0,0 +1,6 @@
+export class LogicError extends Error {
+    constructor(message?: string) {
+        super(message);
+        this.name = 'LogicError';
+    }
+}
\ No newline at end of file
diff --git a/@sammo/game_logic/src/GameEnv.ts b/@sammo/game_logic/src/GameEnv.ts
index 839609a..413b083 100644
--- a/@sammo/game_logic/src/GameEnv.ts
+++ b/@sammo/game_logic/src/GameEnv.ts
@@ -17,4 +17,7 @@ export class GameEnv extends LazyEntityUpdater<IGameEnvEntity>{
         this._raw = raw;
     }
 
+    public bootstrap(){
+        //do nothing;
+    }
 }
\ No newline at end of file
diff --git a/@sammo/game_logic/src/General.ts b/@sammo/game_logic/src/General.ts
index c6e9ab0..d9d9692 100644
--- a/@sammo/game_logic/src/General.ts
+++ b/@sammo/game_logic/src/General.ts
@@ -2,7 +2,7 @@ import { InvalidArgument } from "@sammo/util";
 import { City } from "./City.js";
 import type { IGeneralEntity } from "./Entity/GeneralEntity.js";
 import type { IResourceController } from "./IResourceController.js";
-import { DiplomaticPermission, type CityID, type GeneralID, type GeneralName, type NationID, OfficerLevel, type SquadID } from "./defs.js";
+import { DiplomaticPermission, type CityID, type GeneralID, type GeneralName, type NationID, OfficerLevel, type SquadID, NpcType, StaffLevel, CityOfficerLevel } from "./defs.js";
 import { must } from "@sammo/util";
 import { Nation } from "./Nation.js";
 import { Squad } from "./Squad.js";
@@ -17,11 +17,11 @@ export class General extends LazyEntityUpdater<IGeneralEntity> {
     protected readonly _entityType = "General";
     protected readonly _raw: IGeneralEntity;
 
-    protected _city: WeakRef<City>;
-    protected _squad: WeakRef<Squad> | undefined;
-    protected _nation: WeakRef<Nation>;
+    protected _city!: WeakRef<City>;
+    protected _squad!: WeakRef<Squad> | undefined;
+    protected _nation!: WeakRef<Nation>;
 
-    protected readonly iActionHandlers: Map<IActionKey, IAction>;
+    protected readonly iActionHandlers = new Map<IActionKey, IAction>;
 
     constructor(
         raw: IGeneralEntity,
@@ -29,6 +29,11 @@ export class General extends LazyEntityUpdater<IGeneralEntity> {
     ){
         super();
         this._raw = raw;
+    }
+
+    public bootstrap(){
+        const rsc = this.rsc;
+        const raw = this._raw;
         this._city = new WeakRef(must(rsc.city(raw.cityID)));
         this._nation = new WeakRef(must(rsc.nation(raw.nationID)));
 
@@ -36,8 +41,7 @@ export class General extends LazyEntityUpdater<IGeneralEntity> {
             this._squad = new WeakRef(must(rsc.squad(raw.squadID, raw.nationID)));
         }
 
-        //TODO: iAction 처리해야함
-        this.iActionHandlers = new Map();
+        //TODO: iActionHandlers 초기화
     }
 
     public get id(): GeneralID {
@@ -60,6 +64,28 @@ export class General extends LazyEntityUpdater<IGeneralEntity> {
         return must(this._nation.deref());
     }
 
+    public get isUser(): boolean {
+        return this._raw.npcType <= NpcType.user_borrowed_npc;
+    }
+
+    public get staffLevel(): StaffLevel | undefined {
+        if(this._raw.officerLevel < OfficerLevel.staffIntel3){
+            return undefined;
+        }
+        return this._raw.officerLevel as number as StaffLevel;
+    }
+
+    public get cityOfficerLevel(): CityOfficerLevel | undefined {
+        if(this._raw.officerLevel >= OfficerLevel.staffIntel3){
+            return undefined;
+        }
+        if(this._raw.officerLevel < OfficerLevel.cityLeadership){
+            return undefined;
+        }
+
+        return this._raw.officerLevel as number as CityOfficerLevel;
+    }
+
     public changeCity(city: CityID | City){
         const cityObj: City = (()=>{
             if(city instanceof City){
@@ -86,7 +112,7 @@ export class General extends LazyEntityUpdater<IGeneralEntity> {
 
         const squad = must(this._squad.deref());
         if(squad.leader.id === this._raw.id){
-            squad.destructSquad(false);
+            squad.destroySquad(false);
         }
         else{
             squad.members.delete(this._raw.id);
@@ -142,12 +168,12 @@ export class General extends LazyEntityUpdater<IGeneralEntity> {
             else{
                 raw.officerLevel = OfficerLevel.normal;
             }
-            raw.nationJoinedRelYear = 0;
+            raw.nationJoinedYearMonth = this.rsc.gameEnv.raw.yearMonth;
         });
     }
 
     public updateTurnTime(){
-        const secondsPerTurn = this.rsc.gameEnv().raw.secondsPerTurn;
+        const secondsPerTurn = this.rsc.gameEnv.raw.secondsPerTurn;
 
         this.forceUpdate((raw) => {
             raw.turnTime = addSeconds(raw.turnTime, secondsPerTurn);
diff --git a/@sammo/game_logic/src/IResourceController.ts b/@sammo/game_logic/src/IResourceController.ts
index c805694..9cb74db 100644
--- a/@sammo/game_logic/src/IResourceController.ts
+++ b/@sammo/game_logic/src/IResourceController.ts
@@ -22,21 +22,12 @@ export interface IResourceController {
     popGeneralTurnTimeQueue(): General | undefined;
     insertGeneralTurnTimeQueue(general: General, maybeTail: boolean): void;
 
-    gameEnv(): GameEnv;
+    readonly gameEnv: GameEnv;
 
-    allNations(): Map<NationID, Nation>;
-    allCities(): Map<CityID, City>;
-    allCitiesByNation(): Map<NationID, Map<CityID, City>>;
-    allSquads(): Map<NationID, Map<SquadID, Squad>>;
-    allGenerals(): Map<GeneralID, General>;
-
-    generalByNation(id: NationID): Map<GeneralID, General>;
-    generalByCity(id: CityID, nationID?: NationID): Map<GeneralID, General>;
-    generalBySquad(id: SquadID): Map<GeneralID, General>;
-
-    cityByNation(id: NationID): Map<CityID, City>;
-
-    squadByNation(id: NationID): Map<SquadID, Squad>;
+    readonly nationList: Map<NationID, Nation>;
+    readonly cityList: Map<CityID, City>;
+    readonly squadList: Map<SquadID, Squad>;
+    readonly generalList: Map<GeneralID, General>;
 
     //----Insert, Update, Delete
 
diff --git a/@sammo/game_logic/src/LazyEntityUpdater.ts b/@sammo/game_logic/src/LazyEntityUpdater.ts
index df339ad..4b6519a 100644
--- a/@sammo/game_logic/src/LazyEntityUpdater.ts
+++ b/@sammo/game_logic/src/LazyEntityUpdater.ts
@@ -9,6 +9,8 @@ export abstract class LazyEntityUpdater<Entity extends ValidEntity>{
 
     protected abstract readonly rsc: IResourceController;
 
+    public abstract bootstrap(): void;
+
     public get raw(): Readonly<Entity> {
         return this._raw;
     }
diff --git a/@sammo/game_logic/src/LogicFunc/categorizeGeneral.ts b/@sammo/game_logic/src/LogicFunc/categorizeGeneral.ts
new file mode 100644
index 0000000..8dfa155
--- /dev/null
+++ b/@sammo/game_logic/src/LogicFunc/categorizeGeneral.ts
@@ -0,0 +1,20 @@
+import type { General } from "@/General.js";
+import { NotYetImplemented } from "@sammo/util";
+
+const battleMonthThreshold = 12;
+
+export function categorizeGeneral(general: General): 'war' | 'domestic' {
+
+    const nationLastBattle = general.nation.raw.aux.lastBattleYearMonth;
+    const lastBattle = general.raw.aux.lastBattleYearMonth;
+
+    if(lastBattle !== undefined && nationLastBattle !== undefined){
+        if(lastBattle >= nationLastBattle - battleMonthThreshold){
+            return 'war';
+        }
+    }
+
+    throw new NotYetImplemented();
+
+    return 'domestic';
+}
\ No newline at end of file
diff --git a/@sammo/game_logic/src/Nation.ts b/@sammo/game_logic/src/Nation.ts
index dd90c70..4a7503f 100644
--- a/@sammo/game_logic/src/Nation.ts
+++ b/@sammo/game_logic/src/Nation.ts
@@ -1,21 +1,101 @@
 import { LazyEntityUpdater } from "./LazyEntityUpdater.js";
 import type { INationEntity } from "./Entity/NationEntity.js";
 import type { IResourceController } from "./IResourceController.js";
-import type { NationID, NationName } from "./defs.js";
+import { StaffLevel, type CityID, type GeneralID, type NationID, type NationName, type SquadID } from "./defs.js";
+import type { City } from "./City.js";
+import { General } from "./General.js";
+import { must } from "@sammo/util";
+import type { Squad } from "./Squad.js";
+import { LogicError } from "./Errors.js";
+import { categorizeGeneral } from "./LogicFunc/categorizeGeneral.js";
 
 export class Nation extends LazyEntityUpdater<INationEntity> {
     protected readonly _indirectNames: (keyof INationEntity)[] = ["id"];
     protected readonly _entityType = "Nation";
     protected readonly _raw: INationEntity;
 
+
+    protected readonly categorizedNPCGeneralList = {
+        war: new Map<GeneralID, WeakRef<General>>(),
+        domestic: new Map<GeneralID, WeakRef<General>>()
+    };
+    protected readonly categorizedUserGeneralList = {
+        war: new Map<GeneralID, WeakRef<General>>(),
+        domestic: new Map<GeneralID, WeakRef<General>>()
+    };
+
+
+    protected readonly cityList = new Map<CityID, WeakRef<City>>;
+    protected readonly generalList = new Map<GeneralID, WeakRef<General>>;
+    protected readonly squadList = new Map<SquadID, WeakRef<Squad>>;
+
+    protected readonly npcGeneralList = new Map<GeneralID, WeakRef<General>>();
+    protected readonly userGeneralList = new Map<GeneralID, WeakRef<General>>();
+
+    protected readonly warNPCGeneralList = new Map<GeneralID, WeakRef<General>>();
+    protected readonly warUserGeneralList = new Map<GeneralID, WeakRef<General>>();
+    protected readonly domesticNPCGeneralList = new Map<GeneralID, WeakRef<General>>();
+    protected readonly domesticUserGeneralList = new Map<GeneralID, WeakRef<General>>();
+
+    protected readonly staffList = new Map<StaffLevel, WeakRef<General>>();
+
     constructor(
         raw: INationEntity,
         protected readonly rsc: IResourceController
-    ){
+    ) {
         super();
         this._raw = raw;
     }
 
+    bootstrap() {
+        const rsc = this.rsc;
+        const raw = this._raw;
+
+        //raw값만 읽을것
+        for (const city of rsc.cityList.values()) {
+            if (city.raw.nationID !== raw.id) {
+                continue;
+            }
+            this.cityList.set(city.id, new WeakRef(city));
+        }
+        for (const squad of rsc.squadList.values()) {
+            if (squad.raw.nationID !== raw.id) {
+                continue;
+            }
+            this.squadList.set(squad.id, new WeakRef(squad));
+        }
+        for (const general of rsc.generalList.values()) {
+            if (general.raw.nationID !== raw.id) {
+                continue;
+            }
+            this.generalList.set(general.id, new WeakRef(general));
+
+            if (general.isUser) {
+                this.userGeneralList.set(general.id, new WeakRef(general));
+                if (categorizeGeneral(general) === "war") {
+                    this.warUserGeneralList.set(general.id, new WeakRef(general));
+                }
+                else {
+                    this.domesticUserGeneralList.set(general.id, new WeakRef(general));
+                }
+            } else {
+                this.npcGeneralList.set(general.id, new WeakRef(general));
+                if (categorizeGeneral(general) === "war") {
+                    this.warNPCGeneralList.set(general.id, new WeakRef(general));
+                }
+                else {
+                    this.domesticNPCGeneralList.set(general.id, new WeakRef(general));
+                }
+            }
+
+            const staffLevel = general.staffLevel;
+            if (staffLevel !== undefined) {
+                this.staffList.set(staffLevel, new WeakRef(general));
+            }
+        }
+
+    }
+
     public get id(): NationID {
         return this._raw.id;
     }
@@ -23,4 +103,64 @@ export class Nation extends LazyEntityUpdater<INationEntity> {
     public get name(): NationName {
         return this._raw.name;
     }
+
+    public _kickGeneral(general: General | GeneralID) {
+        //국가에서 장수가 빠져나가는 경우, class내 변수에 대한 처리.
+        if (!(general instanceof General)) {
+            general = must(this.generalList.get(general)?.deref());
+        }
+
+        const generalID = general.id;
+
+        this.generalList.delete(generalID);
+
+        if (general.isUser) {
+            this.userGeneralList.delete(generalID);
+            this.warUserGeneralList.delete(generalID);
+            this.domesticUserGeneralList.delete(generalID);
+        } else {
+            this.npcGeneralList.delete(generalID);
+            this.warNPCGeneralList.delete(generalID);
+            this.domesticNPCGeneralList.delete(generalID);
+        }
+
+        const staffLevel = general.staffLevel;
+
+        if (staffLevel !== undefined) {
+            this.staffList.delete(staffLevel);
+
+            if (staffLevel === StaffLevel.lord) {
+                throw new LogicError(`Lord is kicked: nationID=${this.id}`);
+            }
+        }
+
+        if (general.squad) {
+            general.quitSquad();
+        }
+    }
+
+    public notifyDestroySquad(squad: Squad) {
+        this.squadList.delete(squad.id);
+    }
+
+    public _joinGeneral(general: General | GeneralID) {
+        //국가에 장수가 들어오는 경우, class내 변수에 대한 처리.
+        if (!(general instanceof General)) {
+            general = must(this.rsc.general(general));
+        }
+
+        const generalID = general.id;
+
+        if (general.isUser) {
+            this.userGeneralList.set(generalID, new WeakRef(general));
+        } else {
+            this.npcGeneralList.set(generalID, new WeakRef(general));
+        }
+
+        const staffLevel = general.staffLevel;
+
+        if (staffLevel !== undefined) {
+            this.staffList.set(staffLevel, new WeakRef(general));
+        }
+    }
 }
\ No newline at end of file
diff --git a/@sammo/game_logic/src/Squad.ts b/@sammo/game_logic/src/Squad.ts
index 707ec0f..8fad8e1 100644
--- a/@sammo/game_logic/src/Squad.ts
+++ b/@sammo/game_logic/src/Squad.ts
@@ -9,21 +9,27 @@ export class Squad extends LazyEntityUpdater<ISquadEntity> {
     protected readonly _indirectNames: (keyof ISquadEntity)[] = ["id"];
     protected readonly _entityType = "Squad";
     protected readonly _raw: ISquadEntity;
-    private _leader: WeakRef<General>;
-    private _members: Map<GeneralID, WeakRef<General>>;
+    private _leader!: WeakRef<General>;
+    private _members!: Map<GeneralID, WeakRef<General>>;
 
     constructor(
         raw: ISquadEntity,
-        protected rsc: IResourceController
+        protected rsc: IResourceController,
+        private _rawMembers: GeneralID[]
     ){
         super();
         this._raw = raw;
+    }
 
-        const members = rsc.generalBySquad(raw.id);
-        const leaderID: GeneralID = raw.id as GeneralID;
-        this._leader = new WeakRef(must(members.get(leaderID)));
-        members.delete(leaderID);
-        this._members = new Map([...members].map(([k,v])=>[k, new WeakRef(v)]));
+    public bootstrap(){
+        this._members = new Map(this._rawMembers.map((id)=>{
+            return [id, new WeakRef(must(this.rsc.general(id)))];
+        }));
+
+        const leaderID = this._raw.id as GeneralID;
+
+        this._leader = must(this._members.get(leaderID));
+        this._members.delete(leaderID);
     }
 
     public get id(){
@@ -38,7 +44,7 @@ export class Squad extends LazyEntityUpdater<ISquadEntity> {
         return this._members;
     }
 
-    public destructSquad(withLeader = true){
+    public destroySquad(withLeader = true){
         this._members.forEach((member)=>{
             const general = must(member.deref());
             general.quitSquad();
@@ -47,6 +53,8 @@ export class Squad extends LazyEntityUpdater<ISquadEntity> {
             this.leader.quitSquad();
         }
 
+        this.leader.nation.notifyDestroySquad(this);
+
         this.rsc.reserveDelete(this);
     }
 
diff --git a/@sammo/server/src/GameEngine.ts b/@sammo/server/src/GameEngine.ts
index 4d9256e..4d5dcb8 100644
--- a/@sammo/server/src/GameEngine.ts
+++ b/@sammo/server/src/GameEngine.ts
@@ -81,7 +81,7 @@ export class GameEngine {
 
             upcomingGeneral.updateTurnTime();
             this.rsc.insertGeneralTurnTimeQueue(upcomingGeneral, true);
-            this.rsc.gameEnv().update((env) => {
+            this.rsc.gameEnv.update((env) => {
                 env.lastExecuted = generalTurnTime;
             })
             processedGeneralCount++;
@@ -89,7 +89,7 @@ export class GameEngine {
 
         if (processedGeneralCount > 0) {
             await this.prevSaveWaiter;
-            const lastExecuted = this.rsc.gameEnv().raw.lastExecuted;
+            const lastExecuted = this.rsc.gameEnv.raw.lastExecuted;
             this.loggerEngine.flushAll();
             this.prevSaveWaiter = this.rsc.saveAll().then(() => {
                 this.postStatus({
diff --git a/@sammo/server/src/ResourceController.ts b/@sammo/server/src/ResourceController.ts
index 80f0eeb..9ab1288 100644
--- a/@sammo/server/src/ResourceController.ts
+++ b/@sammo/server/src/ResourceController.ts
@@ -1,19 +1,20 @@
 import type { IResourceController } from "@sammo/game_logic";
-import type { City } from "@sammo/game_logic/src/City.js";
+import { City } from "@sammo/game_logic/src/City.js";
 import type { CityID, GeneralID, NationID, SquadID } from "@sammo/game_logic/src/defs.js";
 import type { IGeneralEntity } from "@sammo/game_logic/src/Entity/GeneralEntity.js";
 import type { ICityEntity, ValidEntityType } from "@sammo/game_logic/src/Entity/index.js";
 import type { INationEntity } from "@sammo/game_logic/src/Entity/NationEntity.js";
 import type { ReservedTurn } from "@sammo/game_logic/src/defs.js";
 import type { ISquadEntity } from "@sammo/game_logic/src/Entity/SquadEntity.js";
-import type { GameEnv } from "@sammo/game_logic/src/GameEnv.js";
+import { GameEnv } from "@sammo/game_logic/src/GameEnv.js";
 import { General } from "@sammo/game_logic/src/General.js";
 import type { LazyEntityUpdater } from "@sammo/game_logic/src/LazyEntityUpdater.js";
-import type { Nation } from "@sammo/game_logic/src/Nation.js";
-import type { Squad } from "@sammo/game_logic/src/Squad.js";
-import { insertItemAtArrayLike, NotYetImplemented } from "@sammo/util";
+import { Nation } from "@sammo/game_logic/src/Nation.js";
+import { Squad } from "@sammo/game_logic/src/Squad.js";
+import { insertItemAtArrayLike, must, NotYetImplemented } from "@sammo/util";
 import Denque from "denque";
 import type { Mongoose } from "mongoose";
+import type { IGameEnvEntity } from "@sammo/game_logic/src/Entity/GameEnvEntity.js";
 
 type ChangeType = "insert" | "update" | "delete";
 
@@ -22,13 +23,17 @@ export class ResourceController implements IResourceController{
     constructor(
         private readonly db: Mongoose
     ) {
-
     }
 
-    private _nation: Map<number, Nation> = new Map();
-    private _city: Map<number, City> = new Map();
-    private _squad: Map<number, Squad> = new Map();
-    private _general: Map<number, General> = new Map();
+    private _gameEnv: GameEnv = new GameEnv({} as IGameEnvEntity, this);
+    public get gameEnv(): GameEnv {
+        return this._gameEnv;
+    }
+
+    public readonly nationList: Map<NationID, Nation> = new Map();
+    public readonly cityList: Map<CityID, City> = new Map();
+    public readonly squadList: Map<SquadID, Squad> = new Map();
+    public readonly generalList: Map<GeneralID, General> = new Map();
 
     //내부적으로 turnTime asc, id asc로 동작하는 PriorityQueue
     private _generalByTurnTime = new Denque<General>();
@@ -45,19 +50,26 @@ export class ResourceController implements IResourceController{
     } as const satisfies Record<ValidEntityType, Map<number, [ChangeType, LazyEntityUpdater<any>]>>;
 
     nation(id: NationID): Nation | undefined {
-        throw new NotYetImplemented();
+        return this.nationList.get(id);
     }
 
     city(id: CityID): City | undefined {
-        throw new NotYetImplemented();
+        return this.cityList.get(id);
     }
 
     squad(id: SquadID, nation: NationID): Squad | undefined {
-        throw new NotYetImplemented();
+        const squad = this.squadList.get(id);
+        if(!squad){
+            return undefined;
+        }
+        if(squad.raw.nationID !== nation){
+            return undefined;
+        }
+        return squad;
     }
 
     general(id: GeneralID): General | undefined {
-        throw new NotYetImplemented();
+        return this.generalList.get(id);
     }
 
     peekGeneralTurnTimeQueue(): General | undefined {
@@ -72,10 +84,6 @@ export class ResourceController implements IResourceController{
         insertItemAtArrayLike(this._generalByTurnTime, general, (a, b)=>a.compareTurnTime(b), maybeTail);
     }
 
-    gameEnv(): GameEnv {
-        throw new NotYetImplemented();
-    }
-
     allNations(): Map<NationID, Nation> {
         throw new NotYetImplemented();
     }
@@ -159,6 +167,63 @@ export class ResourceController implements IResourceController{
     }
 
     resetAndFill(): Promise<void> {
+        this._generalByTurnTime.clear();
+        this.nationList.clear();
+        this.cityList.clear();
+        this.squadList.clear();
+        this.generalList.clear();
+
+        //MongoDB로부터 데이터를 가져와서 채워넣는다.
+
+        const rawGameEnv = {} as IGameEnvEntity;
+        //TODO: Implement!
+
+
+        const rawNationList = new Map<NationID, INationEntity>();
+        const rawCityList = new Map<CityID, ICityEntity>();
+        const rawSquadList = new Map<SquadID, ISquadEntity>();
+        const rawGeneralList = new Map<GeneralID, IGeneralEntity>();
+
+
+        const rawGeneralListBySquad = new Map<SquadID, GeneralID[]>();
+        for(const rawSquad of rawSquadList.values()){
+            rawGeneralListBySquad.set(rawSquad.id, []);
+        }
+        for(const rawGeneral of rawGeneralList.values()){
+            if(!rawGeneral.squadID){
+                continue;
+            }
+            const list = must(rawGeneralListBySquad.get(rawGeneral.squadID));
+            list.push(rawGeneral.id);
+        }
+
+        this._gameEnv = new GameEnv(rawGameEnv, this);
+        this._gameEnv.bootstrap();
+
+        for(const rawNation of rawNationList.values()){
+            const nation = new Nation(rawNation, this);
+            this.nationList.set(nation.id, nation);
+        }
+        for(const rawCity of rawCityList.values()){
+            const city = new City(rawCity, this);
+            this.cityList.set(city.id, city);
+        }
+        for(const rawSquad of rawSquadList.values()){
+            const squad = new Squad(rawSquad, this, must(rawGeneralListBySquad.get(rawSquad.id)));
+            this.squadList.set(squad.id, squad);
+        }
+        for(const rawGeneral of rawGeneralList.values()){
+            const general = new General(rawGeneral, this);
+            this.generalList.set(general.id, general);
+        }
+
+        //lazyInit()을 호출한다.
+        this.nationList.forEach(nation=>nation.bootstrap());
+        this.cityList.forEach(city=>city.bootstrap());
+        this.squadList.forEach(squad=>squad.bootstrap());
+        //iAction때문에 general의 lazyInit이 가장 마지막
+        this.generalList.forEach(general=>general.bootstrap());
+
         throw new NotYetImplemented();
     }