In 1994 Barry Posen devised a defense strategy for a newly independent Ukraine which envisioned a Manstein-styel flexible defense v. Russian attack. See Chartbook Newsletter

Chartbook Newsletter #191 on the vertigo induced by placing the Russian war on Ukraine against backdrop of longer history of armored warfare & Soviet Union's

Dribbling in a brigade and then a division's worth of Western tanks into a war fought btw heirs of the Soviet tank tradiion. Cartbook Newsletter