Red vs. Blue centers on the Red and Blue Teams, two groups of soldiers engaged in a supposed civil war. Originally, each team occupies a small base in a box canyon known as Blood Gulch. According to Simmons, one of the Red Team soldiers, each team's base exists only in response to the other team's base. It is later revealed that there is no actual civil war; both the Red and Blue armies are under the same command, Project Freelancer, and only exist as training simulations for Freelancer Agents. Although both teams generally dislike each other and have standing orders to defeat their opponents and capture their flag, neither team is usually motivated to fight the other, with the exception of Sarge, the leader of Red Team.