The 891st Missile Security Forces Squadron is a unit within the United States Air Force (AFGSC). Its primary role is to ensure the security and readiness of the U.S.’s land-based intercontinental ballistic missile (ICBM) sites. These squadrons are responsible for maintaining a state of alert, deterring potential threats, and implementing appropriate responses when necessary. The 891st Missile Security Forces Squadron, specifically, operates under the Omakau ICBM complex in Montana, United States. This unit is one of many that form part of the global defense strategy of the U.S. Air Force.