I don't have any trouble at all alternating between my Glock and XD. I love my XD .45: it points beautifully, absorbs recoil well and is accurate as well. The trigger is a lot lighter than my Glock (it's SAO) and, after I got used to it, I preferred it (not everybody feels this way).
I don't really thing Croatia is going to blow up any time soon but I'm not so sure about Kosovo.
I think you'd be happy with either choice.