Comandarm was a military rank
Military rank
Military rank is a system of hierarchical relationships in armed forces or civil institutions organized along military lines. Usually, uniforms denote the bearer's rank by particular insignia affixed to the uniforms...

 in the Red Army
Red Army
The Workers' and Peasants' Red Army started out as the Soviet Union's revolutionary communist combat groups during the Russian Civil War of 1918-1922. It grew into the national army of the Soviet Union. By the 1930s the Red Army was among the largest armies in history.The "Red Army" name refers to...

until the end of the 1930s.

Comandarm 2nd rank, with the insignia of four rombs, is graded at 4 ranks above colonel.

Comandarm 1st rank, with the insignia of four rombs and a star, is at 5 ranks above colonel.
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