Chief Master Sergeant Gilda M. Alexander serves as the Command Chief Master Sergeant of the 502nd Air Base Wing and Joint Base San Antonio, Texas. Chief Alexander provides enlisted leadership to a wing comprised of 11 geographically distinct locations including JBSA-Fort Sam Houston, JBSA-Lackland, JBSA-Randolph and JBSA-Camp Bullis. Chief Alexander entered the Air Force in September 1998.