American authorities had been alerted that Afghanistan's air force did not have the capabilities to survive after a U.S. withdrawal.
The Pentagon earlier this year required the vaccine for all members of the military, including active duty, National Guard and the Reserves.
Here's what it's like at Ramstein Air Base in Germany, where many of the tens of thousands of Afghans evacuated from Kabul over the past few weeks are awaiting travel to the United States.
Two out of five Black Air Force members don't trust their chain of command to address racism, bias and unequal opportunities.
Gen. Chuck Boyd, a former POW, says he supports Joe Biden in part because of a report that President Trump called members of the military who died in war "suckers."
Top Space Force leaders say gender and racial diversity are a core part of the mission. But past indicators present a troubling picture.
Gen. Charles Brown was confirmed to lead the U.S. Air Force. Brown said his nomination "provides some hope but also comes with a heavy burden," given the nation's current focus on matters of race.
The joint demonstration between the U.S. Navy's Blue Angels and the Air Force's Thunderbirds will begin early Tuesday afternoon over New York City, Newark and Trenton, N.J., and Philadelphia.
"America is being tested," Vice President Mike Pence said during his commencement address at the U.S. Air Force Academy. It's the first class to graduate cadets into the Space Force.