3900 CPUSS

• Origins: The 3900th Composite Special Operations Unit (CPUSS) was established by the Philippine Air Force in the early 2000s to address the need for a specialized counter-terrorism and special operations unit. • CPUSS Meaning: CPUSS stands for "Composite Special Operations Unit – Sulu," reflecting its initial focus on operations in the Sulu archipelago, a region known for insurgency and terrorist activity. • Multi-role Capabilities: The unit is trained in a variety of special operations tasks, including airborne operations, direct action, close air support, combat search and rescue, and counter-terrorism. • Joint Operations: 3900 CPUSS frequently operates alongside elite Philippine units such as the Army’s Scout Rangers and the Navy’s Special Operations Group, enhancing inter-branch cooperation. • Battle of Marawi: Members of the 3900 CPUSS were deployed during the 2017 Battle of Marawi, providing critical support in reconnaissance, air insertion, and extraction missions. • Airborne Prowess: The unit is known for its proficiency in both static-line and free-fall parachute operations, making it one of the few Air Force units in the Philippines with such capabilities. • Counter-Insurgency: 3900 CPUSS played a key role in counter-insurgency operations against the Abu Sayyaf Group and other armed groups in Mindanao and the Sulu region. • Specialized Equipment: The unit uses a mix of standard Air Force weapons and specialized equipment such as suppressed firearms, night vision devices, and fast-roping gear for helicopter insertions. • Training Exchanges: CPUSS personnel have participated in joint training exercises with U.S. Special Operations Forces under the Balikatan program, enhancing their tactical skills and interoperability. • Unit Motto: The 3900 CPUSS lives by a motto emphasizing courage, adaptability, and mission accomplishment, though the exact wording is kept confidential for operational security.