| name | image | role | date dissolved | date founded | city Headquarters | administrative division Headquarters | country Headquarters | continent Headquarters | Country | continent | Part of |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1st Cavalry Division (United States) |  | Late 1921 | Fort Hood | Texas | United States | Americas | United States | Americas | |||
| 1st Marine Division |  | 01/02/1941 | United States | Americas | United States Marine Corps | ||||||
| Fighter Squadron 1 (United States Navy) |  | 01/10/1993 | 14/10/1972 | United States | Americas |