After horrendous battlefield losses [snip], Vladimir Putin is concentrating his efforts in Ukraine in the eastern provinces of the Donbas. {snip] [since] his original plan for a blitzkrieg against Kyiv nor his plan for multiple operations in the north, south and east worked, [snip] [Putin] seems ready now to embrace longstanding principles of war: simplicity, unity of effort and focused logistics. [snip] No more disputes among commanders over logistical resupply. Rather, the Russians will pursue a single coordinated effort with, initially, more-limited aspirations in the Donbas. Unity of command has long been recognized as an indispensable prerequisite for victory. Battlefield...