The term PART OF MASH can be broken down into three crossword solutions: ARMY (4 letters), HOSP (4 letters), and MOBILE (6 letters). The acronym MASH stands for MOBILE ARMY Surgical Hospital, which was a type of medical unit used by the United States ARMY during the Korean War. The ARMY solution refers to the fact that MASH units were staffed by members of the United States ARMY. The HOSP solution refers to the fact that MASH units were hospitals, providing medical care to wounded soldiers. The MOBILE solution refers to the fact that MASH units were MOBILE, meaning they could be quickly deployed to different locations as needed.