With Homefront out this week predicting how a unified Korea might just turn the U.S. into an occupied nation, it became clear to us how international relations can affect the gaming industry. Gone are the days of all FPSes being either World War II or sci-fi; in the new milennium, developers are on the hunt for enemies that are speculative but still plausible. Either they're rooted in real-life global hotspots (this spring's SOCOM 4 takes place around the shipping lanes of Southeast Asia), or they bring favorite punching bags into the future. Whether it's mercenaries, guerillas, or just insane despots, gamers find themselves fighting against enemies the world over—so we rounded up 20 shooters from the past 10 years and plotted who exactly developers are singling out. Say hi to the bad guy!