This is a "Wild Mass Guess" entry, where we pull out all the sanity stops on theorizing. The regular entry on this topic is elsewhere. Please see this programme note.
Grand Unifying Guesses GI Joe aka: GI Joe
The soldiers from all of the following are G.I. Joes
Transformers (in some cases, including the original cartoon, these canonically share the same universe!)
Rabbit's Revenge they might like like a neo Nazi esque group...but Cobra chose to make it into their branch of the group and weaken the country for their coming.
Vyvyan he doesn't care about world domination, he just wants to blow shit up.
The Goon for protection from G.I. Joe, just in case the CIA is so desperate to take him out they send them in.
Bun-Bun...but Cobra Commander is scared to death of him and only hires him when he needs something REALLY important done.
The Fraternity, the idea for killing all the superheroes on their earth was actually Cobra Commander's idea...and he plans to use them in what could be his most dangerous scheme yet.