Can Putin even prosecute another war? Russia has been suffering hundreds of thousands of casualties (and yes, I know that includes injured) and has lost a lot of mechanized equipment like tanks as well.
According to
this webpage from Ukraine's Ministry of Finance, Russia is losing around 900-1000 military personnnel a day in Ukraine, and has lost 1,107,400 in the war to 29 September 2025.
The stark fact that leaps out at me from that page is just how many men Russia loses, and how few tanks and armoured vehicles. These guys are so poorly equipped and supported.
Also of note is that aircraft are barely engaged, but UAVs are being destroyed at a rate of hundreds a day (and presumably therefore deployed in even greater numbers).
It's a different kind of war from anything seen previously - but it still mostly consists of men in muddy holes with inadequate supply and support, just like every war since forever.