The SOMUA MCG was an artillery tractor

Artillery tractor

Artillery tractor is a kind of tractor, also referred to as a gun tractor, a vehicle used to tow artillery pieces of varying weights.-Traction:...

 and recovery vehicle of the French forces during World War II

World War II

World War II, or the Second World War , was a global conflict lasting from 1939 to 1945, involving most of the world's nations—including all of the great powers—eventually forming two opposing military alliances: the Allies and the Axis...

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It was used to tow medium artillery pieces such as the 155 mm mle 1917 howitzer

Canon de 155 C modèle 1917 Schneider

The Canon de 155 C modèle 1917 Schneider, often abbreviated as the C17S, was a French howitzer designed by Schneider et Cie. It was essentially the Canon de 155 C modèle 1915 Schneider fitted with a different breech to use bagged propellant rather than the cartridge cases used by the older howitzer...

 and the 105 mm mle 1936 field gun

Canon de 105 L mle 1936 Schneider

The Canon de 105 L modèle 1936 Schneider was a field gun used by France in World War II. 159 were in service in 1939. Captured examples in World War II were placed into German service as the 10.5 cm schwere Kanone 332 where they mainly served on coast defense duties.It was built in two versions,...

, as well as their specific ammunition trailers. Of this main version 345 were produced: 264 until 1 September 1939 and another 81 until the end of May.

There was also a recovery version, fitted with a crane, to recover broken-down tanks, of which about 440 were produced.