Katherine Kjellström Elgin, a Washington-based defence analyst and an expert on Russia’s military, also warns of the need to take the claims of various sides “with a grain of salt”.
Yet, she says some patterns do appear to be emerging, especially in relation to the conscripts sent in to fight.
“The conscripts are less well trained because they’re only expected to serve for one year,” she says. “Most of those individuals are going to have something between four to six months of training, half of which was basic training, you just don't have a lot of knowledge and a lot of experience.”
Elgin, who recently co-authored a recent piece in Politico about conscripts, with Suzanne Freeman, a PhD student candidate at Massachusetts Institute of Technology, says the Russian army has a long tradition of severe bullying, or dedovshchina, dating to the Soviet era, what also impacts morale.
“For quite some time, it was really terrible. We're talking about not insignificant number of suicides, rapes, people getting beaten. Just the worst of hazing that you can imagine,” says Elgin, a fellow at the Center for Strategic and Budgetary Assessments, a think tank that focuses on defence policy.
“After 2008 they tried to address this in part by actually shortening the amount of time that conscripts served. But there are still reports of loss of hazing occurring.”
Elgin also raises the impact on the mental health of the young troops ordered to fire barrages of artillery into residential areas and apartment blocks.
“I imagine that unless you've been psychologically prepared for this, that might hit you pretty hard,” she says.
She says such assessments could be made for all militaries. And unless there is adequate preparation and training, and good leadership, the impact is likely to be greater.
“All of these things can impact the performance of individuals,” she says.