In my game, Castilian Mexico (my independent colonial state) is currently fighting British Mexico (Great Britain's colonial state). It's a war started by the other side; but Britain and me are at peace, which means I can share provinces with the troops of British Mexico without fighting.
I don't want to start a war with Britain at this point. Is there any other way to support Castilian Mexico other than declaring war on Britain – money, …? (Or to influence Isla Juana, another one of my colonial independent states comprising almost the entire Caribbean and their next-door neighbor which currently just stands by idly, to make them help their Castilian Mexican brethren)
Any ideas appreciated!
Best Answer
The only thing I can think of to enable you to influence the war without actually declaring war and hence drawing in the British is to provide War subsidies to Castilian Mexico.
There's no guarantee that your money would be wisely spent but it could sway things if it's evenly balanced.
You could also try to enforce peace on British Mexico. It may work, but if they refuse you'll be dragged into the war on the side of the defender.
Or finally you could try to support rebels in British Mexico or If you've researched espionage ideas 6 you could try to sow discontent to try and cause a rebellion uprising.