We are pretty stable even without that army.
The only reason US Troops were/are here, was insurance during cold war.
I hope at least some US Bases remain here. It is always interesting to see US Military equipment in Action.(Most impressive were F117 *__* )
What happens if the battle group has to go against a NATO country???

What happens if Germany,Spain or the USA attack a fellow NATO Country?
Same Game. This time there are just more players.
Looks really promising. Especially because they are specialized for Peacekeeping Missions. The United Nations will be able to respond to trouble a lot
faster.