| 1935: | Birth of Naval Security Group when OP-20G became the Communications Security Group |
| 1941: | President Franklin D. Roosevelt signs Lend-Lease Act |
| 1942: | In a PT boat, LCDR John Bulkeley leaves the Philippines to take General Douglas MacArthur to Australia |
| 1945: | Use of first Navy landing craft to cross Rhine River at Bad Neuenahr |
| 1965: | Market Time patrols begin off South Vietnam coast |