A Russian brigade-level unit arrived in a Russian garrison that recently housed a motor transport unit near Bakhchysarai, Crimea, Dec. 13, 2021. (Satellite image ©2021 Maxar Technologies)Troops and equipment are deployed to Opuk Training Area, Crimea, Nov. 26, 2021. Units include several battle groups with tanks, armored personnel carriers, artillery, and support equipment. (Satellite image ©2021 Maxar Technologies)Troops and equipment are deployed to Opuk Training Area, Crimea, Dec. 22, 2021. Units include several battle groups with tanks, armored personnel carriers, artillery, and support equipment. (Satellite image ©2021 Maxar Technologies)Elements of the 41st Combined Arms Army, including hundreds of tanks, self-propelled artillery and other military equipment are deployed in a training area located near Yelnya, Russia, approximately 160 miles north of the Russia – Ukraine border, Nov. 9, 2021. (Satellite image ©2021 Maxar Technologies)Several Russian battle groups, including tanks, APC, artillery and a long-range multiple rocket unit is deployed in Pogonovo Training Area near Voronezh, Russia, Dec. 21, 2021. (Satellite image ©2021 Maxar Technologies)Several Russian battle groups, including tanks, APC, artillery and a long-range multiple rocket unit is deployed in Pogonovo Training Area near Voronezh, Russia, Dec. 21, 2021. (Satellite image ©2021 Maxar Technologies)A recently deployed battle group has been identified in a training area to the east of Kursk, Russia, Dec. 21, 2021. (Satellite image ©2021 Maxar Technologies)