I would understand that but in the end we're going to spend enormous amounts of money to buy most of our weapons from the US and each on its own. In fact, just by integrating our militaries we could increase our strength and keep the expenses at the current level. The impression is that all this, including cutting ties with Russia (who is selling us the gas now?), is done to the benefit of the US rather than ours.

There is no doubt that Ukraine has benefited the US a lot while Europe loses (including by keeping shooting itself in the foot).