U.S military aircraft takes off at the Hamid Karzai International Airport in Kabul, Afghanistan, Saturday, Aug. 28, 2021. The massive U.S.-led airlift was winding down Saturday ahead of a U.S. deadline to withdraw from Afghanistan by Tuesday. Most allies have completed their own airlifts and flown out after 20 years of deployment in the country. (AP Photo/Wali Sabawoon)