| 40th Infantry Brigade Combat Team | |
|---|---|
&sq=Qlik&lang=&file=File:40th_Infantry_Brigade_Combat_Team_SSI.svg) Shoulder sleeve insignia | |
| Active | 1917–1919 1926–1974 2005–2008 |
| Country |  United States |
| Branch |  United States Army |
| Type | Infantry |
| Size | Brigade |
| Garrison/HQ | San Diego, California (HQ) |
| Nickname(s) | Thunderbolt |
| Motto(s) | ARMIPOTENT (Mighty in Arms) |
| Engagements | |
| Decorations | Philippine Presidential Unit Citation Republic of Korea Presidential Unit Citation |
The 40th Infantry Brigade Combat Team was an infantry brigade of the United States Army National Guard in the state of California.