The COVID-19 pandemic is presenting new challenges for the Air Force's defense cooperation efforts -- from reviewing arms sale requests to moving supplies overseas and transporting aircraft through American bases. The Air Force has had to adjust its posture to mitigate these problems and is ramping up communications with allies to address continued concerns, Brig. Gen. Matthew Isler, regional affairs director in the service's international affairs office, told Inside Defense in an interview last week. He said the Air...