Several agency headquarters – including hundreds of 24th Air Force employees – are housed within the 450,000-square-foot Building 171 at the Port. Courtesy photo.

Several agency headquarters - including hundreds of 24th Air Force employees - are housed within the 450,000-square-foot Building 171 at the Port. Photo courtesy of Port San Antonio.

Several agency headquarters – including hundreds of 24th Air Force employees – are housed within the 450,000-square-foot Building 171 at the Port. Photo courtesy of Port San Antonio.

Several agency headquarters – including hundreds of 24th Air Force employees – are housed within the 450,000-square-foot Building 171 at the Port. Photo courtesy of Port San Antonio.