What do you think? Every country has this problem if and when a war ‘persists’.

Russian Soldiers Confront PTSD, Alcoholism and Suicidal Thoughts After Fighting in Ukraine

The battle Russia has not yet fought: The mental health of its war veterans

And, not to forget, there are also victims:

Ukraine: Mental Health Crisis Intensifies for Children

There are -unfortunately- many reports on that across literally all wars.