I think that America must be punished by Europe with this way:
1.Europa should leave NATO and create own defense organisation
2.Europe countries should stop to pay  debt to MMF
3.EU should be broken becahse it is controlled bx America
4.TTIP must be destroyed because it is only good for America and American companies
5.Best revenge is which Europa can make to America is destroy $  but better i dont prefer that because world war 3 will start