How can I join the USMC as a foreigner?

You can't transfer ROTC credits across branches and this just isn't going to work. You need to look into Platoon Leaders Course (PLC) Marine OCS taught in the summers you're off from school. Luckily for you, this the primar MC OA program so you still have a shot at Marine officer.

I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.