Direct proof of use
U.S. Air Forces Central directly documented GBU-54 Laser Joint Direct Attack Munition use in Iraq. Its August 2008 report said F-16s from the 77th Expeditionary Fighter Squadron at Joint Base Balad executed the first combat employment of the GBU-54 on 12 August 2008 against a moving enemy vehicle in Diyala province, Iraq, supporting a combined Iraqi Army and U.S. Marine operation.
The same AFCENT package includes photographs from Joint Base Balad showing 77th Expeditionary Fighter Squadron weapons loaders aligning a 500-pound GBU-54 before connecting it to an F-16 on 14 August 2008 and an F-16 loaded with GBU-54 Laser JDAMs awaiting takeoff on 15 August 2008.
Sources: AFCENT First GBU-54 Combat Use in Iraq
Timeline
AFCENT placed the urgent operational need for the weapon in early 2007, followed by a development and testing cycle of less than 17 months. The report said the Air Force fielded the GBU-54 aboard 332nd Air Expeditionary Wing aircraft in May 2008 before the 12 August combat use.
The dated public record for this specific weapon in Iraq is concentrated around that August 2008 Joint Base Balad episode. It establishes operational fielding, the first combat employment, the unit and platform involved, and the moving-target role, but it does not provide a broader munition expenditure count for later Iraq sorties.
Sources: AFCENT First GBU-54 Combat Use in Iraq
Operational role
In the 2003 Iraq War catalog context, the GBU-54 appears as a U.S. Air Force precision strike munition for the later Operation Iraqi Freedom phase. AFCENT described it as a 500-pound precision weapon combining GPS and laser guidance to engage and destroy moving targets, and commanders linked its urgent fielding to a combat-zone need.
The documented Iraq employment was by U.S. Air Force F-16s rather than Iraqi government forces or insurgent groups. The reported strike was against a moving enemy vehicle in Diyala province, with a joint terminal attack controller and ground commander involved in the terminal employment process.
Sources: AFCENT First GBU-54 Combat Use in Iraq