Background: The full-scale Russian invasion of Ukraine on 24 February 2022 has led to millions of forcibly displaced persons (FDPs) within Ukraine and other European countries. Due to war-related exposure and displacement adversities, this group is at significant risk of developing depression, anxiety, post-traumatic stress disorder, and other mental health problems. Systemic barriers, including insufficiently equipped mental health systems and language barriers, prevent FDPs from receiving adequate mental health and psychosocial support (MHPSS).