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LVIV, UKRAINE - APRIL 07: (----EDITORIAL USE ONLY â MANDATORY CREDIT - "UKRAINIAN ARMED FORCES / HANDOUT" - NO MARKETING NO ADVERTISING CAMPAIGNS - DISTRIBUTED AS A SERVICE TO CLIENTS----) Chairman of the NATO Military Committee, Stuart Peach (R) meets Commander-in-Chief of the Armed Forces of Ukraine, Ruslan Khomchak (L) during an official visit to Lviv, Ukraine on April 07, 2021. (Photo by Ukrainian Armed Forces / Handout/Anadolu Agency via Getty Images)

LVIV, UKRAINE - APRIL 07:  (----EDITORIAL USE ONLY â MANDATORY CREDIT - "UKRAINIAN ARMED FORCES / HANDOUT" - NO MARKETING NO ADVERTISING CAMPAIGNS - DISTRIBUTED AS A SERVICE TO CLIENTS----)  Chairman of the NATO Military Committee, Stuart Peach (R) meets Commander-in-Chief of the Armed Forces of Ukraine, Ruslan Khomchak (L) during an official visit to Lviv, Ukraine on April 07, 2021. (Photo by Ukrainian Armed Forces / Handout/Anadolu Agency via Getty Images)