Germany isn't even an ally to the rest of Europe. What participation in the European Union has done to multiple European nations is to turn them into dependent nations, with Germany being their economic and policy master. I wouldn't trust Merkel to hit the ground if I saw her jump out of a window.
Plus, if it wasn't for the US winning the cold war, the USSR would still exist and the Berlin Wall would not have come down. We have every right to negotiate our own deals.
The big reason Germany wanted the Iran deal to stay in place was because they were benefiting from it economically:
http://www.dw.com/en/german-economy-to-benefit-from-iran-nuclear-deal-implementation/a-18985878
Amen.
Germany isn’t an “enemy”. To be an enemy you have to have the balls to be some kind of threat to somebody. They’re not a threat to anybody but themselves ultimately since they’ve let in over a million mostly muzzie invaders in the last few years and stopped having kids of their own.
Their interests are entirely mercenary no matter what else they say. They want Uncle Sugar to pay for their Defense. At the same time, they want to benefit from trading with others the US sanctions (less competition for German firms that way). If and when Iran does develop ballistic missiles capable of reaching Europe with nuclear warheads, they will instantly scream that the US to do something (ie pay money to provide for our defense) while at the same time continuing to pocket just as much blood money from the mullahs as they can. They pocketed Saddam’s blood money for years and were very upset when we cut off that revenue stream. Their socialism is expensive. They look for every possible avenue to pay for it and they have no scruples about where that money comes from.