All of Fallen Empire vs usmc. If you are a part of Fallen Empire, then you are already in it. Any TD made by or on you (w usmc as the other party) counts. You can bash usmc and vice versa after 24 hr period from the declaration. Have fun.

I am allied wtih usmc, so would that mean i would be a merc?

Yes. You can offer to merc for him. Your TD will count towards the war if you are accepted.

he joined the alliance after I declared war :/

And I didn't join their alliance, I have an nap with his alliance.

Even though you have a NAP, you can only merc for them if they come onto the forums and say that you can right here. That being said, since it's a single person only one merc is allowed per side.

Lock the thread I surrender. I give up.