Regi, you realize that you agreed to be a subordinate to Japan in a peace deal earlier. If you violate the peace deal, he has every right to invade you.
As for the world war: voided, but more or less temporarily. It will be moved to a crCIA, and Japanese diplomats are met worldwide with distrust. When tension is higher, Germany may declare war. Asumming the Philippine CrCIA is still on, the American embargo is also staining the Japanese economy.
From now on, all of you need to knock it off with the interpersonal drama, and I don't want to hear any "he started it" stuff. Roleplay, god dammit. I didn't host this so we could throw mean words at each other from across the kindergarten classroom.