Participants
In total, 56 post-9/11 veterans were recruited with 28 randomized to the MMMI condition and 28 to the ES condition. All participants were post-9/11 veterans who met the following criteria: (1) at least one deployment to the regions of Iraq and/or Afghanistan and (2) endorsed (agree or strongly agree) two or more (M = 7.98; SD = 4.81) moral injury symptoms on the 17-item Expressions of Moral Injury Scale-Military Version (EMIS-M; Currier et al., 2018) prior to treatment. Potential participants were excluded if they: (1) had a current suicide plan, (2) had a dishonorable discharge, and/or (3) had no access to the internet. Among the 56 veterans who consented to participate, most participants identified as being White (71.4%), were men (66.1%), and reported a service-connected disability (87.5%). They reported a mean age of 41.50 years (Median = 39.50, SD = 9.26) and on average served 12.13 years (Median = 9.00, SD = 8.58). The Army (55.4%), Navy (12.5%), and Air Force (10.7%) were the most represented branches.