The sheer numbers of Causalities dont add up to `partial deployment` of units. The observed number - from Russia themselves was 170 BTG (each around 1000 soldiers) at the start of 2022 for the entire Amry, with 110 deployed to Ukraine. So on paper the force was 170,000>190,000 total personal from all branches in voled
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So with 110BTG`s available at the start (numbers from RUSI and other sources) , these were thrown into the meat grinder and casualty rates were up to 900 a day - thats a BTG per day in casualities. As Perun said last year, Russia started a force regeneration 6 months afetr the invasion (emptying prisons for Wagnar and the 300,000 called up). 5 months on and another force regeneration , another 200,000 being called up (possibly 500,000), but given the short fall first time around, Russia wont get the men needed to force regen.