Aug. 23, 2018 Build-A-Backpack drive provides backpacks for more than 1,400 JBSA schoolchildren More than 1,400 schoolchildren from military families are going back to school with backpacks and school supplies collected during the eighth annual Build-A-Backpack Program drive sponsored by the Joint Base San Antonio Military Child Education Program-School Liaison Office from July 23-Aug. 3.