I think most of them never had the will to fight to begin with.....this is Putin's war --of by and for putin....nothing to motivate Russian fighters......just a useless war.....not worth getting killed for.
What causes armies to lose the will to fight? Here's what history tells us -- and what Putin may soon find out | CNN
History is full of examples of dispirited armies that "quiet quit" — stopped attacking the enemy and essentially disengaged from battle. Here's why that happens, and what it could mean for the weary Russian army in Ukraine.
www.cnn.com