The next game, "", is set ten years after the events of "Snake Eater" and returns to the story of the young Big Boss. Now the head of the mercenary corporation Militaires Sans Frontières (MSF), Big Boss discovers that nuclear warheads are being transported to Latin America and decides that he must put a stop to it. "Peace Walker" features a new cast of characters to provide both aid and intelligence for Big Boss. A few characters from later games, such as a younger Kazuhira Miller, make appearances in the game.