Leaders of the North Atlantic Treaty Organization (NATO) pose for a group photo during a NATO summit at NATO headquarters in Brussels, Belgium, on June 14, 2021. Leaders of the North Atlantic Treaty Organization (NATO) held a face-to-face summit on Monday to show their unity and agreed on the "NATO 2030" agenda to address future challenges. (NATO/Handout via Xinhua)
NATO Secretary General Jens Stoltenberg attends a press conference following a NATO summit at NATO headquarters in Brussels, Belgium, on June 14, 2021. Leaders of the North Atlantic Treaty Organization (NATO) held a face-to-face summit on Monday to show their unity and agreed on the "NATO 2030" agenda to address future challenges. (NATO/Handout via Xinhua)
U.S. President Joe Biden (R, Front) talks with Turkish President Recep Tayyip Erdogan (L, Front) during a NATO summit at NATO headquarters in Brussels, Belgium, on June 14, 2021. Leaders of the North Atlantic Treaty Organization (NATO) held a face-to-face summit on Monday to show their unity and agreed on the "NATO 2030" agenda to address future challenges. (NATO/Handout via Xinhua)
Leaders of the North Atlantic Treaty Organization (NATO) attend a NATO summit at NATO headquarters in Brussels, Belgium, on June 14, 2021. Leaders of the North Atlantic Treaty Organization (NATO) held a face-to-face summit on Monday to show their unity and agreed on the "NATO 2030" agenda to address future challenges. (NATO/Handout via Xinhua)
British Prime Minister Boris Johnson (R) arrives for a NATO summit at NATO headquarters in Brussels, Belgium, on June 14, 2021. Leaders of the North Atlantic Treaty Organization (NATO) held a face-to-face summit on Monday to show their unity and agreed on the "NATO 2030" agenda to address future challenges. (NATO/Handout via Xinhua)
German Chancellor Angela Merkel arrives for a NATO summit at NATO headquarters in Brussels, Belgium, on June 14, 2021. Leaders of the North Atlantic Treaty Organization (NATO) held a face-to-face summit on Monday to show their unity and agreed on the "NATO 2030" agenda to address future challenges. (NATO/Handout via Xinhua)
French President Emmanuel Macron (Front) arrives for a NATO summit at NATO headquarters in Brussels, Belgium, on June 14, 2021. Leaders of the North Atlantic Treaty Organization (NATO) held a face-to-face summit on Monday to show their unity and agreed on the "NATO 2030" agenda to address future challenges. (NATO/Handout via Xinhua)
U.S. President Joe Biden (Front) poses for a group photo during a NATO summit at NATO headquarters in Brussels, Belgium, on June 14, 2021. Leaders of the North Atlantic Treaty Organization (NATO) held a face-to-face summit on Monday to show their unity and agreed on the "NATO 2030" agenda to address future challenges. (NATO/Handout via Xinhua)
NATO Secretary General Jens Stoltenberg (R, Front) welcomes U.S. President Joe Biden (L, Front) at NATO headquarters in Brussels, Belgium, on June 14, 2021. Leaders of the North Atlantic Treaty Organization (NATO) held a face-to-face summit on Monday to show their unity and agreed on the "NATO 2030" agenda to address future challenges. (NATO/Handout via Xinhua)
