By Charlotte Bruneau DONETSK REGION, Ukraine (Reuters) – Psychotherapist Oleh Hukovskyi stands beside a white board in a makeshift classroom in eastern Ukraine and addresses a group of soldiers attending a session on how to cope with the stress of war. The former psychiatrist joined the armed forces about six months after Russia launched a full-scale invasion in February 2022, and now runs a psychological support group attached to the 67th Separate Mechanised Brigade in the direction of the ruined town of Lyman. The classes cover basic psychological theory and coping techniques including breat…