U.S. Defense Secretary Lloyd Austin and U.S. Chairman of the Joint Chiefs of Staff Mark Milley hold a news conference following a virtual Ukraine Defense Contact Group meeting, at the Pentagon in Washington, U.S., March 15, 2023. REUTERS/Evelyn Hockstein 

U.S. Defense Secretary Lloyd Austin and U.S. Chairman of the Joint Chiefs of Staff Mark Milley hold a news conference following a virtual Ukraine Defense Contact Group meeting, at the Pentagon in Washington, U.S., March 15, 2023. REUTERS/Evelyn Hockstein 

U.S. Defense Secretary Lloyd Austin and U.S. Chairman of the Joint Chiefs of Staff Mark Milley hold a news conference following a virtual Ukraine Defense Contact Group meeting, at the Pentagon in Washington, U.S., March 15, 2023. REUTERS/Evelyn Hockstein 

U.S. Defense Secretary Lloyd Austin and U.S. Chairman of the Joint Chiefs of Staff Mark Milley hold a news conference following a virtual Ukraine Defense Contact Group meeting, at the Pentagon in Washington, U.S., March 15, 2023. REUTERS/Evelyn Hockstein 

U.S. Defense Secretary Lloyd Austin and U.S. Chairman of the Joint Chiefs of Staff Mark Milley hold a news conference following a virtual Ukraine Defense Contact Group meeting, at the Pentagon in Washington, U.S., March 15, 2023. REUTERS/Evelyn Hockstein 

U.S. Defense Secretary Lloyd Austin speaks at a news conference following a virtual Ukraine Defense Contact Group meeting, at the Pentagon in Washington, U.S., March 15, 2023. REUTERS/Evelyn Hockstein 

U.S. Defense Secretary Lloyd Austin and U.S. Chairman of the Joint Chiefs of Staff Mark Milley hold a news conference following a virtual Ukraine Defense Contact Group meeting, at the Pentagon in Washington, U.S., March 15, 2023. REUTERS/Evelyn Hockstein 

U.S. Defense Secretary Lloyd Austin and U.S. Chairman of the Joint Chiefs of Staff Mark Milley hold a news conference following a virtual Ukraine Defense Contact Group meeting, at the Pentagon in Washington, U.S., March 15, 2023. REUTERS/Evelyn Hockstein 

U.S. Defense Secretary Lloyd Austin and U.S. Chairman of the Joint Chiefs of Staff Mark Milley hold a news conference following a virtual Ukraine Defense Contact Group meeting, at the Pentagon in Washington, U.S., March 15, 2023. REUTERS/Evelyn Hockstein 

U.S. Defense Secretary Lloyd Austin and U.S. Chairman of the Joint Chiefs of Staff Mark Milley hold a news conference following a virtual Ukraine Defense Contact Group meeting, at the Pentagon in Washington, U.S., March 15, 2023. REUTERS/Evelyn Hockstein 

U.S. Chairman of the Joint Chiefs of Staff Mark Milley speaks at a news conference following a virtual Ukraine Defense Contact Group meeting, at the Pentagon in Washington, U.S., March 15, 2023. REUTERS/Evelyn Hockstein 

U.S. Defense Secretary Lloyd Austin answers questions at a news conference following a virtual Ukraine Defense Contact Group meeting, at the Pentagon in Washington, U.S., March 15, 2023. REUTERS/Evelyn Hockstein 

U.S. Defense Secretary Lloyd Austin and U.S. Chairman of the Joint Chiefs of Staff Mark Milley hold a news conference following a virtual Ukraine Defense Contact Group meeting, at the Pentagon in Washington, U.S., March 15, 2023. REUTERS/Evelyn Hockstein 

U.S. Defense Secretary Lloyd Austin and U.S. Chairman of the Joint Chiefs of Staff Mark Milley hold a news conference following a virtual Ukraine Defense Contact Group meeting, at the Pentagon in Washington, U.S., March 15, 2023. REUTERS/Evelyn Hockstein 

U.S. Defense Secretary Lloyd Austin and U.S. Chairman of the Joint Chiefs of Staff Mark Milley hold a news conference following a virtual Ukraine Defense Contact Group meeting, at the Pentagon in Washington, U.S., March 15, 2023. REUTERS/Evelyn Hockstein 

U.S. Defense Secretary Lloyd Austin and U.S. Chairman of the Joint Chiefs of Staff Mark Milley hold a news conference following a virtual Ukraine Defense Contact Group meeting, at the Pentagon in Washington, U.S., March 15, 2023. REUTERS/Evelyn Hockstein 

U.S. Assistant Secretary of Defense for International Security Affairs Celeste Wallander attends a virtual meeting of Ukraine Defense Contact Group, at the Pentagon in Washington, U.S. March 15, 2023. Andrew Caballero-Reynolds/Pool via REUTERS 

U.S. officials attend a virtual meeting of Ukraine Defense Contact Group, at the Pentagon in Washington, U.S. March 15, 2023. Andrew Caballero-Reynolds/Pool via REUTERS 

U.S. officials attend a virtual meeting of Ukraine Defense Contact Group, at the Pentagon in Washington, U.S. March 15, 2023. Andrew Caballero-Reynolds/Pool via REUTERS 

U.S. Chairman of the Joint Chiefs of Staff General Mark Milley attends a virtual meeting of Ukraine Defense Contact Group, at the Pentagon in Washington, U.S. March 15, 2023. Andrew Caballero-Reynolds/Pool via REUTERS 

U.S. Defense Secretary Lloyd Austin attends a virtual meeting of Ukraine Defense Contact Group, at the Pentagon in Washington, U.S. March 15, 2023. Andrew Caballero-Reynolds/Pool via REUTERS 

U.S. Defense Secretary Lloyd Austin attends a virtual meeting of Ukraine Defense Contact Group, at the Pentagon in Washington, U.S. March 15, 2023. Andrew Caballero-Reynolds/Pool via REUTERS 

U.S. Defense Secretary Lloyd Austin attends a virtual meeting of Ukraine Defense Contact Group, at the Pentagon in Washington, U.S. March 15, 2023. Andrew Caballero-Reynolds/Pool via REUTERS 

U.S. Defense Secretary Lloyd Austin attends a virtual meeting of Ukraine Defense Contact Group, at the Pentagon in Washington, U.S. March 15, 2023. Andrew Caballero-Reynolds/Pool via REUTERS 

U.S. Chairman of the Joint Chiefs of Staff General Mark Milley and U.S. Defense Secretary Lloyd Austin attend a virtual meeting of Ukraine Defense Contact Group, at the Pentagon in Washington, U.S. March 15, 2023. Andrew Caballero-Reynolds/Pool via REUTERS 

U.S. Chairman of the Joint Chiefs of Staff General Mark Milley and U.S. Defense Secretary Lloyd Austin attend a virtual meeting of Ukraine Defense Contact Group, at the Pentagon in Washington, U.S. March 15, 2023. Andrew Caballero-Reynolds/Pool via REUTERS 

U.S. Chairman of the Joint Chiefs of Staff General Mark Milley and U.S. Defense Secretary Lloyd Austin attend a virtual meeting of Ukraine Defense Contact Group, at the Pentagon in Washington, U.S. March 15, 2023. Andrew Caballero-Reynolds/Pool via REUTERS 

U.S. Chairman of the Joint Chiefs of Staff General Mark Milley and U.S. Defense Secretary Lloyd Austin attend a virtual meeting of Ukraine Defense Contact Group, at the Pentagon in Washington, U.S. March 15, 2023. Andrew Caballero-Reynolds/Pool via REUTERS 

U.S. Chairman of the Joint Chiefs of Staff General Mark Milley, U.S. Defense Secretary Lloyd Austin and U.S. Assistant Secretary of Defense for International Security Affairs Celeste Wallander attend a virtual meeting of Ukraine Defense Contact Group, at the Pentagon in Washington, U.S. March 15, 2023. Andrew Caballero-Reynolds/Pool via REUTERS 

U.S. Chairman of the Joint Chiefs of Staff General Mark Milley, U.S. Defense Secretary Lloyd Austin and U.S. Assistant Secretary of Defense for International Security Affairs Celeste Wallander attend a virtual meeting of Ukraine Defense Contact Group, at the Pentagon in Washington, U.S. March 15, 2023. Andrew Caballero-Reynolds/Pool via REUTERS 

U.S. Chairman of the Joint Chiefs of Staff General Mark Milley and U.S. Defense Secretary Lloyd Austin attend a virtual meeting of Ukraine Defense Contact Group, at the Pentagon in Washington, U.S. March 15, 2023. Andrew Caballero-Reynolds/Pool via REUTERS 

U.S. Chairman of the Joint Chiefs of Staff General Mark Milley and U.S. Defense Secretary Lloyd Austin attend a virtual meeting of Ukraine Defense Contact Group, at the Pentagon in Washington, U.S. March 15, 2023. Andrew Caballero-Reynolds/Pool via REUTERS 

U.S. Secretary of Defense Lloyd Austin meets Israeli Defence Minister Yoav Gallant at a news conference at Ben Gurion Airport in Lod, Israel, March 9, 2023. REUTERS/Amir Cohen 

U.S. Secretary of Defense Lloyd Austin meets Israeli Defence Minister Yoav Gallant at a news conference at Ben Gurion Airport in Lod, Israel, March 9, 2023. REUTERS/Amir Cohen 

U.S. Secretary of Defense Lloyd Austin meets Israeli Defence Minister Yoav Gallant at a news conference at Ben Gurion Airport in Lod, Israel, March 9, 2023. REUTERS/Amir Cohen 

Israeli Defence Minister Yoav Gallant attends a news conference with U.S. Secretary of Defense Lloyd Austin at Ben Gurion Airport in Lod, Israel, March 9, 2023. REUTERS/Amir Cohen 

U.S. Secretary of Defense Lloyd Austin meets Israeli Defence Minister Yoav Gallant at a news conference at Ben Gurion Airport in Lod, Israel, March 9, 2023. REUTERS/Amir Cohen 

U.S. Secretary of Defense Lloyd Austin meets Israeli Defence Minister Yoav Gallant at a news conference at Ben Gurion Airport in Lod, Israel, March 9, 2023. REUTERS/Amir Cohen 

Israeli Defence Minister Yoav Gallant attends a news conference with U.S. Secretary of Defense Lloyd Austin at Ben Gurion Airport in Lod, Israel, March 9, 2023. REUTERS/Amir Cohen 

U.S. Secretary of Defense Lloyd Austin attends a news conference with Israeli Defence Minister Yoav Gallant at Ben Gurion Airport in Lod, Israel, March 9, 2023. REUTERS/Amir Cohen 

U.S. Secretary of Defense Lloyd Austin attends a news conference with Israeli Defence Minister Yoav Gallant at Ben Gurion Airport in Lod, Israel, March 9, 2023. REUTERS/Amir Cohen 

U.S. Secretary of Defense Lloyd Austin meets Israeli Defence Minister Yoav Gallant at a news conference at Ben Gurion Airport in Lod, Israel, March 9, 2023. REUTERS/Amir Cohen 

U.S. Secretary of Defense Lloyd Austin meets Israeli Defence Minister Yoav Gallant at a news conference at Ben Gurion Airport in Lod, Israel, March 9, 2023. REUTERS/Amir Cohen 

U.S. Secretary of Defense Lloyd Austin attends a news conference with Israeli Defence Minister Yoav Gallant at Ben Gurion Airport in Lod, Israel, March 9, 2023. REUTERS/Amir Cohen 

U.S. Secretary of Defense Lloyd Austin attends a news conference with Israeli Defence Minister Yoav Gallant at Ben Gurion Airport in Lod, Israel, March 9, 2023. REUTERS/Amir Cohen 

U.S. Secretary of Defense Lloyd Austin attends a news conference with Israeli Defence Minister Yoav Gallant at Ben Gurion Airport in Lod, Israel, March 9, 2023. REUTERS/Amir Cohen 

U.S. Secretary of Defense Lloyd Austin attends a news conference with Israeli Defence Minister Yoav Gallant at Ben Gurion Airport in Lod, Israel, March 9, 2023. REUTERS/Amir Cohen 

U.S. Secretary of Defense Lloyd Austin attends a news conference with Israeli Defence Minister Yoav Gallant at Ben Gurion Airport in Lod, Israel, March 9, 2023. REUTERS/Amir Cohen 

U.S. Secretary of Defense Lloyd Austin meets Israeli Defence Minister Yoav Gallant at a news conference at Ben Gurion Airport in Lod, Israel, March 9, 2023. REUTERS/Amir Cohen 

U.S. Secretary of Defense Lloyd Austin and his Israeli counterpart, Defence Minister Yoav Gallant hold a news conference at Ben Gurion airport in Lod, Israel, March 9, 2023. REUTERS/Amir Cohen 

U.S. Secretary of Defense Lloyd Austin meets Israeli Defence Minister Yoav Gallant at a news conference at Ben Gurion Airport in Lod, Israel, March 9, 2023. REUTERS/Amir Cohen 

U.S. Defence Secretary Lloyd Austin shakes hands with Israeli Defence Minister Yoav Gallant upon his arrival at Ben Gurion Airport, Israel, March 9, 2023. REUTERS/Idrees Ali 

U.S. Defence Secretary Lloyd Austin is greeted by Israeli Defence Minister Yoav Gallant at Ben Gurion Airport, Israel, March 9, 2023. REUTERS/Idrees Ali 

U.S. Defense Secretary Lloyd Austin attends a joint news conference with President of the Kurdistan region in Iraq Nechirvan Barzani (not pictured), in Erbil, Iraq March 7, 2023. REUTERS/Azad Lashkari 

U.S. Defense Secretary Lloyd Austin and President of the Kurdistan region in Iraq Nechirvan Barzani attend a joint news conference, in Erbil, Iraq March 7, 2023. REUTERS/Azad Lashkari 

U.S. Defense Secretary Lloyd Austin attends a joint news conference with President of the Kurdistan region in Iraq Nechirvan Barzani (not pictured), in Erbil, Iraq March 7, 2023. REUTERS/Azad Lashkari 

U.S. Defense Secretary Lloyd Austin and President of the Kurdistan region in Iraq Nechirvan Barzani attend a joint news conference, in Erbil, Iraq March 7, 2023. REUTERS/Azad Lashkari 

U.S. Defense Secretary Lloyd Austin and President of the Kurdistan region in Iraq Nechirvan Barzani shake hands as they attend a joint news conference, in Erbil, Iraq March 7, 2023. REUTERS/Azad Lashkari 

President of the Kurdistan region in Iraq Nechirvan Barzani attends a joint news conference with U.S. Defense Secretary Lloyd Austin (not pictured), in Erbil, Iraq March 7, 2023. REUTERS/Azad Lashkari 

U.S. Defense Secretary Lloyd Austin and President of the Kurdistan region in Iraq Nechirvan Barzani attend a joint news conference, in Erbil, Iraq March 7, 2023. REUTERS/Azad Lashkari