While you would think that Russia and America are getting closer and closer, the current European leadership (most of them), clearly has ideological differences with Putin's Russia and also with the current US-President, who seems to have stopped to play the world police. You also should not forget rising players, like China. To arm up usually means a huge boost to the economy, which is something that Trump needs, due to his promises. Unfortunately, the current system usually ends up in war at some point. So we will have to see. At the moment we are far from an open European-American-Russian Alliance. Though I think America and Russia could get closer together under Trump and Putin.