Snipers of the Russian armed forces take part in military exercises at the Kadamovsky range in the Rostov region, Russia January 13, 2022. Russian snipers take part in the military exercises in the Rostov region near Ukraine border on Thursday (January 13). REUTERS/Sergey Pivovarov

A sniper of the Russian armed forces takes part in military exercises at the Kadamovsky range in the Rostov region, Russia January 13, 2022. Snipers trained at camouflaging, target classification, fire correction, the use of observation and targeting devices, the defence ministry said in a statement accompanying the drills. REUTERS/Sergey Pivovarov

Snipers of the Russian armed forces take part in military exercises at the Kadamovsky range in the Rostov region, Russia January 13, 2022. Russia has perturbed the West by building up troops near Ukraine and demanded that Washington pledge not to let Ukraine join NATO or expand the military alliance eastward, a stipulation that the United States refuses to accept. REUTERS/Sergey Pivovarov

A sniper of the Russian armed forces takes part in military exercises at the Kadamovsky range in the Rostov region, Russia January 13, 2022. REUTERS/Sergey Pivovarov

Snipers of the Russian armed forces take part in military exercises at the Kadamovsky range in the Rostov region, Russia January 13, 2022. REUTERS/Sergey Pivovarov