diff --git a/core/src/com/unciv/logic/civilization/diplomacy/DeclareWar.kt b/core/src/com/unciv/logic/civilization/diplomacy/DeclareWar.kt
index 50c3b2ae83..ade7674ed6 100644
--- a/core/src/com/unciv/logic/civilization/diplomacy/DeclareWar.kt
+++ b/core/src/com/unciv/logic/civilization/diplomacy/DeclareWar.kt
@@ -40,9 +40,28 @@ object DeclareWar {
 
         breakTreaties(diplomacyManager)
 
-        if (otherCiv.isMajorCiv())
+        if (otherCiv.isMajorCiv()) {
             for (unique in civInfo.getTriggeredUniques(UniqueType.TriggerUponDeclaringWar))
                 UniqueTriggerActivation.triggerUnique(unique, civInfo)
+        }
+        
+        for (unique in civInfo.getTriggeredUniques(UniqueType.TriggerUponDeclaringWarFiltered)) {
+            if (otherCiv.matchesFilter(unique.params[0]))
+                UniqueTriggerActivation.triggerUnique(unique, civInfo)
+        }
+        
+        for (unique in otherCiv.getTriggeredUniques(UniqueType.TriggerUponBeingDeclaredWarUpon)) {
+            if (civInfo.matchesFilter(unique.params[0]))
+                UniqueTriggerActivation.triggerUnique(unique, otherCiv)
+        }
+    
+        for (unique in civInfo.getTriggeredUniques(UniqueType.TriggerUponEnteringWar))
+            if (otherCiv.matchesFilter(unique.params[0]))
+                UniqueTriggerActivation.triggerUnique(unique, civInfo)
+
+        for (unique in otherCiv.getTriggeredUniques(UniqueType.TriggerUponEnteringWar))
+            if (civInfo.matchesFilter(unique.params[0]))
+                UniqueTriggerActivation.triggerUnique(unique, otherCiv)
     }
 
     private fun handleCityStateDirectAttack(diplomacyManager: DiplomacyManager) {
diff --git a/core/src/com/unciv/models/ruleset/unique/UniqueType.kt b/core/src/com/unciv/models/ruleset/unique/UniqueType.kt
index e98858ca3a..f28eddb125 100644
--- a/core/src/com/unciv/models/ruleset/unique/UniqueType.kt
+++ b/core/src/com/unciv/models/ruleset/unique/UniqueType.kt
@@ -924,6 +924,9 @@ enum class UniqueType(
     TriggerUponEnteringEraUnfiltered("upon entering a new era", UniqueTarget.TriggerCondition),
     TriggerUponAdoptingPolicyOrBelief("upon adopting [policy/belief]", UniqueTarget.TriggerCondition),
     TriggerUponDeclaringWar("upon declaring war with a major Civilization", UniqueTarget.TriggerCondition),
+    TriggerUponDeclaringWarFiltered("upon declaring war upon [civFilter] Civilizations", UniqueTarget.TriggerCondition),
+    TriggerUponBeingDeclaredWarUpon("upon being declared war upon by [civFilter] Civilizations", UniqueTarget.TriggerCondition),
+    TriggerUponEnteringWar("upon entering a war with [civFilter] Civilizations", UniqueTarget.TriggerCondition),
     TriggerUponDeclaringFriendship("upon declaring friendship", UniqueTarget.TriggerCondition),
     TriggerUponSigningDefensivePact("upon declaring a defensive pact", UniqueTarget.TriggerCondition),
     TriggerUponEnteringGoldenAge("upon entering a Golden Age", UniqueTarget.TriggerCondition),
diff --git a/docs/Modders/uniques.md b/docs/Modders/uniques.md
index 09e940f20b..3cb95eb86b 100644
--- a/docs/Modders/uniques.md
+++ b/docs/Modders/uniques.md
@@ -3635,6 +3635,21 @@ Simple unique parameters are explained by mouseover. Complex parameters are expl
 ??? example  "<upon declaring war with a major Civilization>"
 	Applicable to: TriggerCondition
 
+??? example  "<upon declaring war with a [civFilter] Civilization>"
+	Example: "<upon declaring war with a [City-States] Civilization>"
+
+	Applicable to: TriggerCondition
+
+??? example  "<upon being declared war upon [civFilter] Civilization>"
+	Example: "<upon being declared war upon [City-States] Civilization>"
+
+	Applicable to: TriggerCondition
+
+??? example  "<upon entering a war with [civFilter] Civilization>"
+	Example: "<upon entering a war with [City-States] Civilization>"
+
+	Applicable to: TriggerCondition
+
 ??? example  "<upon declaring friendship>"
 	Applicable to: TriggerCondition