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| 45th Sustainment Brigade | |
|---|---|
 45th Sustainment Brigade shoulder sleeve insignia | |
| Active | 1936 – 2015 |
| Country | United States |
| Branch | United States Army |
| Type | Sustainment brigade |
| Part of | 8th Theater Sustainment Command |
| Garrison/HQ | Schofield Barracks |
The 45th Sustainment Brigade was a sustainment brigade of the United States Army based at Schofield Barracks, Hawaii. The 45th SB was directly subordinate to the 8th Theater Sustainment Command until 2015 when the Army aligned sustainment brigades to major divisions. The 45th SB was then re-designated to the 25th Sustainment Brigade, with the 25th Infantry Division obtaining complete administrative and operational control.