In this paper, I consider how Robert Heinlein's Starship Troopers (1959) and Orson Scott Card's Ender's Game (1985) allegorically treat U.S. Cold War fears of invasion by the Soviet Union. Given the texts' historical relationship to the Vietnam War and their use of very similar science fiction tropes (namely, invasion by communistic, insect-like aliens), I argue that Orson Scott Card reimagines the binary Cold War conflict, softening the rhetoric of Starship Troopers and allowing for a more qualified understanding of the relationship between the U.S.S.R. and the U.S. Through this analysis, I also consider how science fiction is a useful tool of cultural criticism in that it posits future worlds so as to reflect contemporary social concerns.