Russia has been steadily gaining in Ukraine but has focused its efforts on advancing in the country's eastern Donetsk region.

Pokrovsk has been dubbed a "fortress" city, key for Ukraine's logistics and a long-time stronghold for Kyiv in the east.

Currently, Russian forces are advancing in the east, slowly but surely, and they are shrinking Ukraine’s partial hold of the border region of Kursk. That the Russians haven’t been more ...