 In 2014's "All-New Invaders" Issue #12, there's a flashback of Freedom's Five and it is revealed that Phantom Eagle died at the end of the war.In 1914, Karl Kaufman was a skilled American pilot from Oshkosh, Wisconsin, whose German parents had returned to their native country.Kaufman had become an expert stunt-pilot and co-owner of a flying circus, by 1917, when the United States entered World War I, and desired to fight the Central Powers.