The term 'Army Heads' is a reference to the top-level officers of the United States Army. These officers are responsible for leading the Army and making decisions on behalf of the entire organization. The 8-letter crossword solution for this term is 'Latrines, ' which refers to the toilets or bathrooms used by members of the military. Latrines are an important part of the Army's infrastructure, as they provide a necessary service to soldiers in the field.