Military Railway Service (United States)

The Military Railway Service was created in the 1920s as a reserve force for the Quartermaster Division of the United States Army. It had existed twice before: first as the United States Military Railroad during the American Civil War, and then a second time during World War I. In the original documentation for the service, all Class I railroad companies were to create a battalion for the war effort. In doing so, 11 Grand Divisions were formed and 46 operating battalions were assigned; however, five were never activated.

Each railway operating battalion was established with four companies. The HQ company was the headquarters and was used for signaling, dispatching, and supplying their section of the railway. The A company was set up to handle the maintenance of tracks themselves, the B company handled the maintenance of the rolling stock through the stations, and the C company was set up with roughly 50 men to operate the trains in their area. As for the Grand Division it was established with multiple operating battalions and then a shop battalion and a base depot company. The shop battalion was only to work on the engines themselves. During the war, there were two types of shop battalions. The main type at the start was the steam engine battalion; however there were a few diesel shop battalions.

In the European Theater of Operations (ETO), the 1st and 2nd Military Railway Service (MRS) was used to control supply by rail in this theater. The 1st was assigned to the Mediterranean with Italy, North Africa, and Southern France as its main areas of operations. The 2nd was assigned Northern France to Germany. By 1942, the first units started to be shipped out. Besides units for the Persian Gulf Command and North Africa, the 761st Operating for England and for Alaska the 770th Operating was shipped out. Another MRS was established to handle the supplies sent to Russia through Iran (Persia). The 3rd MRS was set up using the 702nd with the 711th Operating, 730th Operating, 754th Shop, and 762nd Diesel Shop battalions as its core units. Initial Command was under the 702nd Grand Division but by April 1944 it was replaced by the 3rd MRS. The 702nd and initial 3rd MRS commander was Col Paul Yount, but in May 1944 he was sent east to assist the China Burma India Theater and Col. Frank S. Besson, Jr., was tasked to take over the 3rd MRS.

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