As Designed Ally not being called into a defensive war and not losing alliance

[Abnormalmind]

Integrity​

I have verified my game files (on Steam)​

Yes

I have disabled all mods​

No

Required​

Summary​

Ally not being called into a defensive war and not losing alliance

Description​

Firstly, this was reported within six months ago and those bug reports seem gone. It just happened again.

Switzerland declared war against Great Britian. Great Britian's ally, Portugal, didn't honor the call to arms and didn't lose alliance. I'm not even sure if it received a called to arms for the defensive war. So now Portugal remains allied to Great Britian, while Great Britian is in a defensive war against Switzerland.

Steps to reproduce​

Load ironman saved game as Switzerland. Observe current war and Great Britian's allies.

Game Version​

subscription

OS​

Windows

Additional​

Bug Type​

Attachments​

View attachment swiss.eu4

Screenshot​

 

[typhus_of_barbarus]

This occurs because countries fighting on the same side in a war generally cannot go to war with each other. Portugal is currently in a war as an ally of Spain so they cannot be called into this war. If Switzerland did not call in Spain then Portugal would have joined the war as normal. If the Spanish war in Peru ends they could still be called into this war, however I believe if the attacker has over 25% warscore then the defender can no longer call allies. This relation can be used by the player to dodge shared allies, in the attached save Morocco allied to both Tunis and Switzerland could not come to Tunis' aid if Switzerland were to attack as they are currently fighting a war on the same side. You can also see this effect if you go to declare war on Ethiopia, Portugal will join as a defender, but if you call in Spain, Portugal will no longer be able to join.

 

[Abnormalmind]

That makes sense. Thanks

 

[typhus_of_barbarus]

It is worth noting that if a target has 2 allies who are currently at war with each other, the declare war screen shows that both will join the war but co-belligerating one will show the truth and allows the player to decide which ally to fight.

 

[Qloc_Wild_Wind]

Hello there! As mentioned above the present is a design choice and not an issue. If you have any more questions feel free to ask them on the forum.