diff --git a/hwe/func_converter.php b/hwe/func_converter.php
index a688bc75..8015975f 100644
--- a/hwe/func_converter.php
+++ b/hwe/func_converter.php
@@ -328,7 +328,7 @@ function buildGeneralSpecialWarClass(?string $type):BaseSpecial{
 
 function getActionCrewTypeClass(?string $type){
     if($type === null || $type === ''){
-        $type = GameConst::$defaultSpecialWar;
+        $type = 'None';
     }
 
     static $basePath = __NAMESPACE__.'\\ActionCrewType\\';
diff --git a/hwe/j_simulate_battle.php b/hwe/j_simulate_battle.php
index 38bb2019..1e4ea6a4 100644
--- a/hwe/j_simulate_battle.php
+++ b/hwe/j_simulate_battle.php
@@ -409,7 +409,7 @@ function simulateBattle(
         );
     }
 
-    if(count($defenderList) == 0 && extractBattleOrder($city, $attacker) > 0){
+    if(count($defenderList) && extractBattleOrder($city, $attacker) > 0){
         $defenderList[] = $city;
     }
 
diff --git a/hwe/process_war.php b/hwe/process_war.php
index c53482e9..8453c92a 100644
--- a/hwe/process_war.php
+++ b/hwe/process_war.php
@@ -51,7 +51,7 @@ function processWar(string $warSeed, General $attackerGeneral, array $rawAttacke
         $defenderList[] = $defenderCandidate;
     }
 
-    if(count($defenderList) == 0 && extractBattleOrder($city, $attacker) > 0){
+    if(count($defenderList) && extractBattleOrder($city, $attacker) > 0){
         $defenderList[] = $city;
     }
 
diff --git a/hwe/sammo/ActionCrewType/None.php b/hwe/sammo/ActionCrewType/None.php
new file mode 100644
index 00000000..ae86970e
--- /dev/null
+++ b/hwe/sammo/ActionCrewType/None.php
@@ -0,0 +1,12 @@
+<?php
+namespace sammo\ActionCrewType;
+use \sammo\iAction;
+use \sammo\General;
+
+class None implements iAction{
+    use \sammo\DefaultAction;
+
+    protected $id = -1;
+    protected $name = '-';
+    protected $info = '';
+}
\ No newline at end of file
diff --git a/hwe/sammo/GameUnitConstBase.php b/hwe/sammo/GameUnitConstBase.php
index 38b6ef73..762161ab 100644
--- a/hwe/sammo/GameUnitConstBase.php
+++ b/hwe/sammo/GameUnitConstBase.php
@@ -334,7 +334,7 @@ class GameUnitConstBase{
             [self::T_FOOTMAN=>1.25, self::T_ARCHER=>1.25, self::T_CAVALRY=>1.25, self::T_WIZARD=>1.25, self::T_CASTLE=>1.8, 1106=>1.112],
             [self::T_FOOTMAN=>1.2, self::T_ARCHER=>1.2, self::T_CAVALRY=>1.2, self::T_WIZARD=>1.2, 1106=>1.067],
             ['상대에게 돌덩이를 날립니다.'],
-            ['che_성벽부상무효'], ['che_선제사격시도', 'che_선제사격발동'], null
+            ['che_성벽부상무효'], ['che_선제사격시도', 'che_선제사격발동'], ['che_성벽선제']
         ],
         [
             1503, self::T_SIEGE, '목우',
@@ -343,7 +343,7 @@ class GameUnitConstBase{
             [self::T_FOOTMAN=>1, self::T_ARCHER=>1, self::T_CAVALRY=>1, self::T_WIZARD=>1, self::T_CASTLE=>1.8],
             [self::T_FOOTMAN=>1, self::T_ARCHER=>1, self::T_CAVALRY=>1, self::T_WIZARD=>1, 1106=>1],
             ['상대를 저지하는 특수병기입니다.'],
-            ['che_성벽부상무효'], ['che_저지시도', 'che_저지발동'], ['che_성벽선제']
+            ['che_성벽부상무효'], ['che_저지시도', 'che_저지발동'], null
         ]
     ];
 
diff --git a/hwe/sammo/GameUnitDetail.php b/hwe/sammo/GameUnitDetail.php
index 6e524c95..2e63da15 100644
--- a/hwe/sammo/GameUnitDetail.php
+++ b/hwe/sammo/GameUnitDetail.php
@@ -70,7 +70,7 @@ class GameUnitDetail implements iAction
         $this->initSkillTrigger = $initSkillTrigger;
         $this->phaseSkillTrigger = $phaseSkillTrigger;
         $this->iActionList = [];
-        foreach($iActionList as $rawAction){
+        foreach($iActionList ?? [] as $rawAction){
             $action = buildActionCrewTypeClass($rawAction);
             if(!$action){
                 continue;