Sure, I'm in. Although...
THE N.L.A.S (National League of Allied Superhumans)
All three nations of America, Great Britain and Russia have collected citizens granted with extraordinary powers and enlisted them to cease victory in the war. However, both heroes and villains have been selected for the process, and so the team members must learn to trust one another, after all, the villains may very well decide to take this situation to their advantage.
Also, to make things worse, the Axis Powers have also begun a similar project, hiring superhumans from Germany (and its occupied land), Japan and Italy, as well as Allied villains who have been managed to be turned to the Axis side, for either money or power.
Should it be International, not National? Personally I'd just call em the LAS