Two competing clocks constrain the Ukraine war outcome: Russia is mobilizing 300,000 men (mobilized last fall) plus another 120,000 from annual conscription with talk of further mobilization, and the question is how fast Russia can equip and train these soldiers and deploy them for spring offensives; Ukraine's clock is how fast Western equipment can be delivered and integrated with trained personnel. Russia may launch an offensive as early as February 24th, the anniversary of the invasion.