Ability to decline allied troops

[Panzergruppe]

I'd like the ability to decline being lent allied troops, as they're usually useless, being sometimes inferior in many ways, and sometimes the ally just take them back in the middle of a campaign, so they just build huge stacks in their capital and won't defend their own country without me moving them, though I'm busy elsewhere.

 

[^_AC_^]

You mean expeditionary forces? You can tell that country to not send them to you, it's a diplomatic action (available since Arma I believe).

 

[MartinBG]

This is part of the game since Doomsday at least
Select the allied nation you don't want to get EF from in Diplomacy tab, Select "Expeditionary Forces" action and confirm that you don't want troops from that country

EDIT:
Too slow

 

[Kung Zog]

What would be needed is a function to return all expeditionary troops. Now, if you have some, you need to go through all your troops and return them one by one.