Do you want to compare Uncle Sam with Valkyrie? Discover the powers, weakness & weapons of Uncle Sam and Valkyrie from Uncle Sam Biography and Valkyrie Biography. Find out all about Uncle Sam and Valkyrie.# Check out how is Uncle Sam unique and distinct from Valkyrie. Discover their love interest, sidekicks, family tree and the movies and games list in which Uncle Sam and Valkyrie have appeared. Find out everything about them here!