Jan. 31, 2020 Gen. Harrigian welcomes Poland to European F-35 User's Group U.S. Air Forces in Europe and Air Forces Africa Commander Gen. Jeff Harrigian presented a letter to Inspector of the Polish Air Force Maj. Gen. Jacek Pszczoła, welcoming Poland to the European F-35 User’s Group, in Dęblin, Poland, Jan. 31, 2019.