A visitor walks past an armored vehicle during his visit to the seventh edition of the Doha International Maritime Defence Exhibition & Conference (DIMDEX 2022) at the Qatar National Convention Centre in Doha, Qatar, March 21, 2022. Over 200 companies participated in the DIMDEX 2022.(Photo: Xinhua)

Photo taken on March 21, 2022 shows a view of the seventh edition of the Doha International Maritime Defence Exhibition & Conference (DIMDEX 2022) at the Qatar National Convention Centre in Doha, Qatar. Over 200 companies participated in the DIMDEX 2022.(Photo: Xinhua)