| 1942: | CGC Acacia was shelled and sunk by U-161 in the Caribbean. |
| 1944: | Invasions of Manus (Admiralties) and Emirau (St. Mathias Islands). |
| 1983: | The service retires its last HC-131A Samaritan. |
| 1997: | Operation Gulf Shield begins. This operation is a counterpart to the counter narcotics operation Frontier Shield. |