with other allies: wow. they look so classy. with america: hahahaha there's a piece of glass on his eye! m'sorry. just couldn't think of america wearing That, of all things.
There is a translate error in every video labeled "Allied Forces" in this channel. If you check the original link you'll see 联五 which means the permanent members, not Allies of WWII.
This would make more sense of it was Korea and not China. Btw: this is the 20 or 23rd time that I’ve watch this I fucking love the animation in the song!