Call of Duty: World at War is a 2008 first-person shooter game developed by Treyarch and published by Activision. It is the fifth main installment of the Call of Duty series and is the fourth entry in the series to be set during World War II. The game was announced by Activision in June 2008 and was released in November 2008, for PlayStation 3, Windows, Xbox 360, and Wii. Other games under the World at War title were published for the Nintendo DS and PlayStation 2, featuring different storylines and missions.

The Marine Raiders are special operations forces originally established by the United States Marine Corps during World War II to conduct amphibious light infantry warfare. "Edson's" Raiders of 1st Marine Raider Battalion and "Carlson's" Raiders of 2nd Marine Raider Battalion are said to have been the first United States special operations forces to form and see combat during World War II.