The United States Air Force's 5th Air Support Operations Squadron is a combat support squadron located at Fort Lewis, Washington.

Its air support parties served with United States Marines and United States and Australian Army forces, directing air support missions for the forces they served.

It has deployed personnel to fight since the September 11 terrorist attacks in 2001, notably during the Iraq War (2003-2010).

[1] The unit's Joint Terminal Attack Controllers are traditionally aligned with I Corps and the Joint Base Lewis-McChord based Stryker Brigades, but due to manning shortages and theater requirements, the unit's airmen have deployed with many different units during the past decade.

[2] This article incorporates public domain material from the Air Force Historical Research Agency