U.S. Coast Guard Reserve Petty Officer 2nd Class Christopher Kalavsky, a storekeeper with Port Security Unit 307, carefully makes adjustments on a viper patrol boat motor, Oct. 29, 2008. PSU 307 provides maritime safety and security for the water around U.S. Navy Station Guantanamo Bay and Joint Task Force Guantanamo. JTF Guantanamo conducts safe, humane, legal and transparent care and custody of detained enemy combatants, including those convicted by military commission and those ordered released. The JTF conducts intelligence collection, analysis and dissemination for the protection of detainees and personnel working in JTF Guantanamo facilities and in support of the Global War on Terror. JTF Guantanamo provides support to the Office of Military Commissions, to law enforcement and to war crimes investigations. The JTF conducts planning for and, on order, responds to Caribbean mass migration operations.