Index: binaries/data/mods/public/maps/random/danubius_triggers.js
===================================================================
--- binaries/data/mods/public/maps/random/danubius_triggers.js
+++ binaries/data/mods/public/maps/random/danubius_triggers.js
@@ -387,7 +387,7 @@
 };
 
 /**
- * Attack the closest enemy ships around, then patrol the sea.
+ * Attack the closest enemy units around, then patrol the map.
  */
 Trigger.prototype.AttackAndPatrol = function(entities, targetClass, triggerPointRef, debugName, attack)
 {
@@ -411,7 +411,8 @@
 
 	let attackers = TriggerHelper.MatchEntitiesByClass(entities, "!Healer");
 
-	let targets = TriggerHelper.MatchEntitiesByClass(TriggerHelper.GetAllPlayersEntities(), targetClass).sort(
+	let targets = TriggerHelper.MatchEntitiesByClass(TriggerHelper.GetAllPlayersEntities(), targetClass).filter(
+		target => this.IsLeftRiverside(target) == this.IsLeftRiverside(attackers[0])).sort(
 		(ent1, ent2) => DistanceBetweenEntities(attackers[0], ent1) - DistanceBetweenEntities(attackers[0], ent2)).slice(0, targetCount);
 
 	this.debugLog(debugName + " " + uneval(attackers) + " attack " + uneval(targets));