Marshal is the highest rank in both the Brazilian Army and the Brazilian Air Force, although the latter is titled marechal-do-ar. These ranks are equivalent to that of admiral in the navy. A marshal is distinguished by using five stars, which for a marshal of the air are in the approximate position of Southern Cross and for a marshal in the army, in the form of "X". The five stars of admiral are in the shape of a pentagon.

The Brazilian Army is the branch of the Brazilian Armed Forces responsible, externally, for defending the country in eminently terrestrial operations and, internally, for guaranteeing law, order and the constitutional branches, subordinating itself, in the Federal Government's structure, to the Ministry of Defense, alongside the Brazilian Navy and Air Force. The Military Police and Military Firefighters Corps are legally designated as reserve and auxiliary forces to the army. Its operational arm is called Land Force. It is the largest army in South America and the largest branch of the Armed Forces of Brazil.