Overview of new Russian military deployments at Oktyabrskoye airfield, Crimea, Feb. 10, 2022 (Satellite image ©2022 Maxar Technologies)

Closer view shows a tent camp and equipment at the northern end of Oktyabrskoye airfield, Crimea, Feb. 10, 2022 (Satellite image ©2022 Maxar Technologies)

Closer view shows equipment and tents at Oktyabrskoye airfield, Crimea, Feb. 10, 2022 (Satellite image ©2022 Maxar Technologies)

Closer view shows troops and equipment at Oktyabrskoye airfield, Crimea, Feb. 10, 2022 (Satellite image ©2022 Maxar Technologies)

Closer view shows equipment and tents at the southern end of Oktyabrskoye airfield, Crimea, Feb. 10, 2022 (Satellite image ©2022 Maxar Technologies)

Overview of new Russian military deployments at Novoozernoye, Crimea, Feb. 9, 2022 (Satellite image ©2022 Maxar Technologies)

Closer view shows equipment and new deployments at Novoozernoye, Crimea, Feb. 9, 2022 (Satellite image ©2022 Maxar Technologies)

Closer view shows troop tents and a field hospital at Novoozernoye, Crimea, Feb. 9, 2022 (Satellite image ©2022 Maxar Technologies)

Overview of multiple rocket launcher and self-propelled artillery training at Novoozernoye, Crimea, Feb. 9, 2022 (Satellite image ©2022 Maxar Technologies)

Closer view shows multiple rocket launcher and self-propelled artillery training at Novoozernoye, Crimea, Feb. 9, 2022 (Satellite image ©2022 Maxar Technologies)

Overview shows new Russian military deployments at Slavne, Crimea, Feb. 9, 2022 (Satellite image ©2022 Maxar Technologies)

Closer view shows armored vehicles at Slavne, Crimea, Feb. 9, 2022 (Satellite image ©2022 Maxar Technologies)

Overview shows new Russian deployments at Kursk training area, Russia, Feb. 9, 2022 (Satellite image ©2022 Maxar Technologies)

Overview shows multiple battle groups and troop housing areas at Kursk training area, Russia, Feb. 9, 2022 (Satellite image ©2022 Maxar Technologies)

Closer view shows multiple battle groups and troop housing areas at Kursk training area, Russia, Feb. 9, 2022 (Satellite image ©2022 Maxar Technologies)

Closer view shows tents and troop housing area at Kursk training area, Russia, Feb. 9, 2022 (Satellite image ©2022 Maxar Technologies)

Closer view shows armored vehicles and transporters arriving at Kursk training area, Russia, Feb. 9, 2022 (Satellite image ©2022 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)

Overview of Russian military deployments at Zyabrovka airfield, Belarus, Feb. 10, 2022 (Satellite image ©2022 Maxar Technologies)

Closer view shows troop housing area and a field hospital at Zyabrovka airfield, Belarus, Feb. 10, 2022 (Satellite image ©2022 Maxar Technologies)

Closer view shows troops and equipment at Zyabrovka airfield, Belarus, Feb. 10, 2022 (Satellite image ©2022 Maxar Technologies)

Closer view shows armored vehicle deployments at Zyabrovka airfield, Belarus, Feb. 10, 2022 (Satellite image ©2022 Maxar Technologies)

Closer view shows helicopters and troop tents at Zyabrovka airfield, Belarus, Feb. 9, 2022 (Satellite image ©2022 Maxar Technologies)

Overview of Russian military deployment areas in Rechitsa, Belarus, Feb. 9, 2022 (Satellite image ©2022 Maxar Technologies)

Closer view shows troop housing area and battle group vehicles at Rechitsa, Belarus, Feb. 9, 2022 (Satellite image ©2022 Maxar Technologies)

Closer view shows additional troop housing area and battle group vehicles at Rechitsa, Belarus, Feb. 9, 2022 (Satellite image ©2022 Maxar Technologies)

Closer view shows troops and vehicles at Rechitsa, Belarus, Feb. 9, 2022 (Satellite image ©2022 Maxar Technologies)