ADDS REFERENCE TO ACTING AFGHAN MINISTER OF DEFENSE YASIN ZIA – U.S. Defense Secretary Lloyd Austin, center, walks on the red carpet with Acting Afghan Minister of Defense Yasin Zia as they review an honor guard at the presidential palace in Kabul, Afghanistan, Sunday, March 21, 2021. Austin arrived in Kabul on his first trip to Afghanistan as Pentagon chief, amid swirling questions about how long American troops will remain in the country. (Presidential Palace via AP)