Karolina Hird, Kateryna Stepanenko, Grace Mappes, Layne Philipson, George Barros, Madison Williams, Yekaterina Klepanchuk, and Frederick W. Kagan:
Russian forces are continuing to shape and consolidate their force composition in eastern Ukraine to bolster defenses against ongoing Ukrainian counteroffensives near the Kharkiv-Luhansk Oblast border and support limited offensive efforts in Donetsk Oblast. An independent Ukrainian analytical organization, the Center for Defense Strategies, noted on December 12 that the Russians are centralizing and systematizing the command and control of Western Military District (WMD) troops in the Kharkiv-Luhansk direction. The Center noted that the 20th Combined Arms Army of the WMD is currently operating in this area in three general groupings: elements of the 144th Motorized Rifle Division near Svatove; elements of the 3rd Motorized Rifle Division on the Kreminna-Rubizhne line; and elements of the 18th Motorized Rifle Division of the 11th Army Corps in northwestern Luhansk Oblast near Troitske. The Center also reported that elements of the 1st and 2nd Army Corps (troops of the Donetsk and Luhansk People’s Republics, respectively), 76th Air Assault Division and 106th Airborne Division, and up to three BARS (Combat Reserve) detachments, amounting up to 15 to 17 battalions, are concentrated in this general area. These troop concentrations are likely significantly degraded and understrength.
