U.S. Army Capt. Adam Cheney, 264th Medical Battalion chaplain, meets with service members awaiting flights during holiday block leave, also known as exodus, at San Antonio International Airport, Texas, Dec. 20, 2025. The annual joint-service initiative allows trainees from Joint Base San Antonio to travel to approved destinations during the holiday season. (U.S. Air Force photo by Jonathan R. Mallard)

U.S. Army Maj. Gen. Anthony L. McQueen, U.S. Army Medical Center of Excellence commanding general, and U.S. Army Command Sgt. Maj. Jesus H. Gonzalez, U.S. Army Medical Center of Excellence senior enlisted leader, visit with service members at the United Service Organizations center, San Antonio International Airport, Texas, Dec. 20, 2025. The leadership team engaged with troops traveling during holiday block leave, which is also known as exodus. (U.S. Air Force photo by Jonathan R. Mallard)

U.S. Army Maj. Gen. Anthony L. McQueen, U.S. Army Medical Center of Excellence commanding general, visits with Soldiers supporting holiday block leave, also known as exodus, operations at San Antonio International Airport, Texas, Dec. 20, 2025. Personnel across Joint Base San Antonio assisted thousands of trainees as they departed for the joint-service initiative. (U.S. Air Force photo by Jonathan R. Mallard)

U.S. Army Staff Sgt. Zachary Babin, U.S. Army Medical Center of Excellence drill sergeant, supervises Soldiers arriving at San Antonio International Airport, Texas, Dec. 20, 2025. Troops departed the installation for holiday block leave, also known as exodus, a joint-service initiative allowing trainees to travel during the holiday season. (U.S. Air Force photo by Jonathan R. Mallard)

U.S. Army trainees arrive by bus at San Antonio International Airport, Texas, Dec. 20, 2025, to begin their holiday block leave, which is also known as exodus. The annual joint-service initiative allows service members in initial entry training to travel to approved destinations during the holiday season. (U.S. Air Force photo by Jonathan R. Mallard)

U.S. Army Maj. Gen. Anthony L. McQueen, U.S. Army Medical Center of Excellence commanding general, visits with service members awaiting flights during holiday block leave, also known as exodus, at San Antonio International Airport, Texas, Dec. 20, 2025. The annual joint-service initiative allows trainees from Joint Base San Antonio to travel to approved destinations during the holiday season. (U.S. Air Force photo by Jonathan R. Mallard)

U.S. Army Maj. Gen. Anthony L. McQueen, U.S. Army Medical Center of Excellence commanding general, and Command Sgt. Maj. Jesus H. Gonzalez, U.S. Army Medical Center of Excellence senior enlisted leader, visit with service members awaiting flights during holiday block leave, also known as exodus, at the United Service Organizations lounge at San Antonio International Airport, Texas, Dec. 20, 2025. Soldiers and Airmen assigned to Joint Base San Antonio traveled to approved destinations during the annual leave period. (U.S. Air Force photo by Jonathan R. Mallard)

U.S. Air Force Brig. Gen. Gwendolyn A. Foster, 59th Medical Wing commander, greets Airmen waiting for their flights at San Antonio International Airport, Texas, Dec. 20, 2025. Foster and other leaders from Joint Base San Antonio visited departing trainees during holiday block leave, also known as exodus, a joint-service initiative that allows Soldiers and Airmen in initial entry training to travel to approved destinations for the holiday period. (U.S. Air Force photo by Jonathan R. Mallard)

U.S. Air Force Col. Jennifer Anderson, 37th Training Wing interim deputy commander, assists U.S. Army Pvt. Bryce Henness, Bravo Company combat medic trainee, 232d Medical Battalion, with checking his baggage at San Antonio International Airport, Texas, Dec. 20, 2025. Soldiers and Airmen assigned to Joint Base San Antonio began travel for holiday block leave, also known as exodus, a joint-service initiative that allows initial entry trainees to travel to approved destinations during the holiday period. (U.S. Air Force photo by Jonathan R. Mallard)

U.S. Air Force Capt. Trever Palmer, 937th Training Group perioperative nursing course director, assists U.S. Army Spc. Jon Abdin, Alpha Company medical laboratory specialist trainee, 264th Medical Battalion, with checking his baggage at San Antonio International Airport, Texas, Dec. 20, 2025. Soldiers and Airmen assigned to Joint Base San Antonio began their travel during holiday block leave, also known as exodus, a joint-service initiative that allows trainees in initial entry training to travel to approved destinations over the holiday period. (U.S. Air Force photo by Jonathan R. Mallard)

Volunteers distribute snacks and bottled water to service members at San Antonio International Airport, Texas, Dec. 20, 2025. Community organizations partnered with Joint Base San Antonio leadership to support Soldiers and Airmen traveling during holiday block leave, also known as exodus, a joint-service initiative that allows trainees in initial entry training to travel to approved destinations during the holiday period. (U.S. Air Force photo by Jonathan R. Mallard)