T'Girl wrote:

Chaplains are specifically trained in multiple religious practices, and to help service members in their religious activities, even if these activities are not the chaplain's own.
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This is correct. My father was an army chaplain during WW2, stationed at various posts in the Pacific Theater between 1942-1945 (including Okinawa). He was Southern Baptist, but conducted services for Methodists, Catholics, Jews, and whoever else was in his congregations. He had an official chaplain's manual that I saw, which covered specific rites and rituals for several religious affiliations. He acted as counselor, confessor, administered last rites, conducted worship services, funerals, and even weddings-- one young lieutenant married a native girl, which eventually resulted in a murder-suicide.
One of his criticisms of how clergy are presented in film though, was that unless a character was a Roman Catholic priest, they were usually played as buffoons.