For a weapon camouflage, see Russia (Camouflage).

Russia (Russian: Россия) is the world's largest country located in northern Eurasia heavily featured in the Modern Warfare series. Although protagonists in World War II games, in Call of Duty 4: Modern Warfare, Call of Duty: Modern Warfare 2 and Call of Duty: Modern Warfare 3, Russia is the main enemy of the United States and NATO within the series. In Call of Duty: Black Ops II, if the player completes all the Strike Force missions, Russia will ally with the United States and NATO.