What war is Call Of Duty: Black Ops based on?

Call of Duty: Black Ops is based on the Cold War because it takes place during the mid-20th century, a time period dominated by intense political and military tension between the United States and the Soviet Union. The game's narrative focuses on covert operations, espionage, and historical events such as the Bay of Pigs invasion, the Vietnam War, and the Soviet-Afghan War, all significant aspects of the Cold War era. The gameplay and storyline highlight the intense and secretive nature of this global conflict, making it a fitting backdrop for the game.