Nothing is free, the US used military to gain influence, all while justifying subsidizing with tax money the military since they cannot "lower the production" because there are less wars. The US always needs wars to keep its economy and power.
Giving troops to NATO was always in the interest of the US, it was made it look as goodwill.
Also you discuss entering a war with your allies BEFORE getting into one. Europe is not a vassal state of the US, you can't just order people around without them questioning such decision.
Nothing is free, the US used military to gain influence, all while justifying subsidizing with tax money the military since they cannot "lower the production" because there are less wars. The US always needs wars to keep its economy and power.
Giving troops to NATO was always in the interest of the US, it was made it look as goodwill.
Also you discuss entering a war with your allies BEFORE getting into one. Europe is not a vassal state of the US, you can't just order people around without them questioning such decision.