Article · Wikipedia archive · Last revised Jun 25, 2026

Main support battalion

A Main Support Battalion (MSB) was a US Army logistics formation in the "Army of Excellence" period. The role of the MSB was to support soldiers in the division rear and provide designated reinforcing support to the forward support battalions. The MSBs were converted to serve as the Brigade Support Battalion for the 4th Brigade Combat teams activated as part of the Modularity transformation after 2004.

Last revised
Jun 25, 2026
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A Main Support Battalion (MSB) was a US Army logistics formation in the "Army of Excellence" period. The role of the MSB was to support soldiers in the division rear and provide designated reinforcing support to the forward support battalions. 1 The MSBs were converted to serve as the Brigade Support Battalion for the 4th Brigade Combat teams activated as part of the Modularity transformation after 2004.

Organization

One MSB was organic to each Division Support Command. The MSB comprised:

  • Headquarters and Headquarters Detachment
  • Supply and Service Company
  • Transportation Motor Transport Company
  • Heavy Maintenance Company
  • Electronic Maintenance Company
  • Medical Company
See also

See also

  • Divisional Support Command
Footnotes

Footnotes

  1. FM 63-21 Main Support Battalion