diff --git a/app/GameMissions/MoonDestructionMission.php b/app/GameMissions/MoonDestructionMission.php
index ad0be977c..9e7d32935 100644
--- a/app/GameMissions/MoonDestructionMission.php
+++ b/app/GameMissions/MoonDestructionMission.php
@@ -3,6 +3,7 @@
 namespace OGame\GameMissions;
 
 use Illuminate\Support\Facades\DB;
+use OGame\Enums\FleetMissionStatus;
 use OGame\Enums\FleetSpeedType;
 use OGame\GameMessages\FleetLostContact;
 use OGame\GameMessages\MoonDestroyed;
@@ -34,6 +35,7 @@ class MoonDestructionMission extends GameMission
     protected static bool $hasReturnMission = true;
     protected static bool $blockedByServerAttackBlock = true;
     protected static FleetSpeedType $fleetSpeedType = FleetSpeedType::war;
+    protected static FleetMissionStatus $friendlyStatus = FleetMissionStatus::Hostile;
 
     public function isMissionPossible(PlanetService $planet, Coordinate $targetCoordinate, PlanetType $targetType, UnitCollection $units): MissionPossibleStatus
     {
diff --git a/tests/Feature/FleetMovementTest.php b/tests/Feature/FleetMovementTest.php
index a1d4e2ab0..617afae5e 100644
--- a/tests/Feature/FleetMovementTest.php
+++ b/tests/Feature/FleetMovementTest.php
@@ -334,4 +334,25 @@ public function testFleetMovementShowsFleetSlots(): void
         // Should show fleet slots info
         $response->assertSee('Fleets');
     }
+
+    /**
+     * Regression test for #1446: /fleet/movement must not 500 when a moon destruction fleet is active.
+     */
+    public function testFleetMovementShowsMoonDestructionMission(): void
+    {
+        $this->missionType = 9; // Moon Destruction
+
+        $this->planetAddUnit('deathstar', 1);
+        $this->playerSetResearchLevel('computer_technology', 5);
+        $this->planetAddResources(new Resources(0, 0, 100000, 0));
+
+        $unitCollection = new UnitCollection();
+        $unitCollection->addUnit(ObjectService::getUnitObjectByMachineName('deathstar'), 1);
+        $this->sendMissionToOtherPlayerMoon($unitCollection, new Resources(0, 0, 0, 0));
+
+        $response = $this->get('/fleet/movement');
+        $response->assertStatus(200);
+        $response->assertSee('Moon Destruction');
+        $response->assertSee('hostile', false);
+    }
 }
diff --git a/tests/Unit/MoonDestructionMissionTest.php b/tests/Unit/MoonDestructionMissionTest.php
index 2285451e9..7c4b4670b 100644
--- a/tests/Unit/MoonDestructionMissionTest.php
+++ b/tests/Unit/MoonDestructionMissionTest.php
@@ -2,6 +2,7 @@
 
 namespace Tests\Unit;
 
+use OGame\Enums\FleetMissionStatus;
 use OGame\Factories\PlanetServiceFactory;
 use OGame\Factories\PlayerServiceFactory;
 use OGame\GameMissions\MoonDestructionMission;
@@ -31,6 +32,11 @@ protected function setUp(): void
         );
     }
 
+    public function testFriendlyStatusIsHostile(): void
+    {
+        $this->assertSame(FleetMissionStatus::Hostile, MoonDestructionMission::getFriendlyStatus());
+    }
+
     /**
      * @param array<int, mixed> $args
      * @return mixed