diff --git a/src/game/scenes/BattleScene.ts b/src/game/scenes/BattleScene.ts
index e8ca916..f146c83 100644
--- a/src/game/scenes/BattleScene.ts
+++ b/src/game/scenes/BattleScene.ts
@@ -220,6 +220,8 @@ export class BattleScene extends Phaser.Scene {
   private commandButtons: CommandButton[] = [];
   private commandMenuObjects: Array<Phaser.GameObjects.Rectangle | Phaser.GameObjects.Text> = [];
   private mapMenuObjects: Array<Phaser.GameObjects.Rectangle | Phaser.GameObjects.Text> = [];
+  private alertObjects: Phaser.GameObjects.GameObject[] = [];
+  private alertDismissEvent?: Phaser.Time.TimerEvent;
   private turnPromptObjects: Phaser.GameObjects.GameObject[] = [];
   private combatCutInObjects: Phaser.GameObjects.GameObject[] = [];
   private unitViews = new Map<string, UnitView>();
@@ -636,6 +638,11 @@ export class BattleScene extends Phaser.Scene {
           return;
         }
         if (choicePointer.leftButtonDown()) {
+          if (command === 'strategy' || command === 'item') {
+            this.showUnavailableCommandAlert(command);
+            return;
+          }
+
           if (command !== 'wait') {
             this.beginDamageTargeting(unit, command);
             return;
@@ -676,6 +683,72 @@ export class BattleScene extends Phaser.Scene {
     this.commandButtons = [];
   }
 
+  private showUnavailableCommandAlert(command: Extract<BattleCommand, 'strategy' | 'item'>) {
+    const message = command === 'strategy' ? '사용할 수 있는 책략이 없습니다.' : '사용할 수 있는 도구가 없습니다.';
+    this.showBattleAlert(message);
+  }
+
+  private showBattleAlert(message: string) {
+    this.hideBattleAlert();
+    soundDirector.playSelect();
+
+    const depth = 90;
+    const width = 430;
+    const height = 158;
+    const left = Math.floor((this.scale.width - width) / 2);
+    const top = Math.floor((this.scale.height - height) / 2);
+
+    const shade = this.add.rectangle(0, 0, this.scale.width, this.scale.height, 0x020406, 0.28);
+    shade.setOrigin(0);
+    shade.setDepth(depth);
+    shade.setInteractive();
+
+    const panel = this.add.rectangle(left, top, width, height, 0x101821, 0.98);
+    panel.setOrigin(0);
+    panel.setDepth(depth + 1);
+    panel.setStrokeStyle(3, palette.gold, 0.9);
+
+    const text = this.add.text(left + width / 2, top + 45, message, {
+      fontFamily: '"Malgun Gothic", "Noto Sans KR", sans-serif',
+      fontSize: '21px',
+      color: '#f2e3bf',
+      fontStyle: '700',
+      align: 'center'
+    });
+    text.setOrigin(0.5, 0);
+    text.setDepth(depth + 2);
+
+    const okButton = this.add.rectangle(left + width / 2, top + 112, 112, 34, 0x253748, 0.96);
+    okButton.setDepth(depth + 2);
+    okButton.setStrokeStyle(1, palette.blue, 0.78);
+    okButton.setInteractive({ useHandCursor: true });
+
+    const okText = this.add.text(left + width / 2, top + 112, '확인', {
+      fontFamily: '"Malgun Gothic", "Noto Sans KR", sans-serif',
+      fontSize: '17px',
+      color: '#ffffff',
+      fontStyle: '700'
+    });
+    okText.setOrigin(0.5);
+    okText.setDepth(depth + 3);
+    okText.setInteractive({ useHandCursor: true });
+
+    const close = () => this.hideBattleAlert();
+    shade.on('pointerdown', close);
+    okButton.on('pointerdown', close);
+    okText.on('pointerdown', close);
+    this.alertDismissEvent = this.time.delayedCall(1400, close);
+
+    this.alertObjects.push(shade, panel, text, okButton, okText);
+  }
+
+  private hideBattleAlert() {
+    this.alertDismissEvent?.remove(false);
+    this.alertDismissEvent = undefined;
+    this.alertObjects.forEach((object) => object.destroy());
+    this.alertObjects = [];
+  }
+
   private completeUnitAction(unit: UnitData, command: BattleCommand) {
     if (this.phase !== 'command' || this.selectedUnit?.id !== unit.id || this.actedUnitIds.has(unit.id)) {
       return;