LKS 20220518 People walk past a gift shop in central Moscow on May 17, 2022, next to T-shirts bearing the letter Z, a tactical insignia of Russian troops in Ukraine, and a picture of Russian President Vladimir Putin. - The "Z", which has become a symbol of support for Russian military action in Ukraine, is widely used by Russian authorities and President Putin supporters, decorating building facades, bus doors, car windscreens and T-shirts. LEHTIKUVA / AFP Alexander Nemenov