A command master chief of the navy

Enlisted rating

Command master chief petty officer (CMDCM)^{[N 1]} is an enlisted rating in the United States Navy and U.S. Coast Guard, as well as the Japan Maritime Self-Defense Force.

Master Chief Petty Officers of the Navy - NHHC

In the U.S. Navy, the command master chief petty officer is the senior enlisted advisor at a command and as such works as a liaison between the commanding officer and the enlisted ranks, serving as the senior enlisted leader. In this capacity, the CMDCM assists the commanding officer in issues of quality of life, discipline, training, and morale.

Collectively, the CMDCM, commanding officer, and executive officer are referred to as the "big three".^[1][2][3]

Japan Maritime Self-Defense Force

Japan's navy, the Japanese Maritime Self-Defense Force (JMSDF), first established their command master chief petty officer program in 2003, modelling it on that of the U.S.

Navy's.^[4][5]

United States

Command Master Chief Program - Goatlocker NEHY