Brazilian Army the "General de Exército" (), a "four-star" general. In times of war, or in exceptional circumstances, a fifth star may be worn by the highest-ranking officer in the army, who is then promoted to "Marechal", (). Brazilian Army officers wear rank insignia on shoulder boards and the army has ten officer ranks, also known as "grades", excluding that of an officer candidate. Brazilian Army officer ranks from second lieutenant to colonel equate directly with counterparts in the United States Army, but thereafter the systems diverge. A Brazilian "General de Brigada" () wears two stars, with duties equivalent to a U.S.
United States Army enlisted rank insignia was briefly termed lance corporal. In 1966, the rank of Sergeant Major of the Army was established, its holder an assistant to the Army chief of staff. Considered a higher grade than sergeant major (or than command sergeant major from 1968), the Sergeant Major of the Army didn't receive its own unique rank insignia until 1979. In 1968, the rank of command sergeant major was established as an assistant to the commanding officer at battalion, brigade, division, and corps level. Also, that year the insignia of private first class received one arc under the chevron. In 1978, the rank of