| 1906 | C1 | Launched |
| 1906 | C2 | Launched |
| 1909 | D2 | Laid Down |
| 1911 | RAN | Royal Australian Navy was formed. Australia had previously maintained an assortment of minor warships for local maritime defence since the 1850s |
| 1912 | E10 | Laid Down |
| 1916 | E38 | Completed |
| 1918 | L6 | Completed |
| 1940 | Battle of Britain begins | In addition to raids on shipping over the channel, the Germans raid dock targets in South Wales. This date becomes the first day of the Battle of Britain. |
| 1940 | Phoenix (N96) | HMS Phoenix attacks an escorted tanker off Augusta and is lost to depth charges from Italian torpedo boat Albatros in the Mediterranean |
| 1941 | Tuna (N94) | While on patrol in the Bay of Biscay HMS Tuna fires two torpedoes at a submerged Asdic contact which is thought to be an enemy submarine. The torpedoes miss their target. |
| 1941 | Umpire (N82) | Completed |
| 1942 | Shakespeare (P221) | Completed |
| 1943 | Varangian (P61) | Completed |
| 1944 | Untiring (P59) | HMS Untiring attacks a German auxiliary patrol vessel with torpedoes off Cannes, southern France. The torpedoes miss. |
| 1944 | Vox (P67) | HMS Vox torpedoes and sinks the German collier Anita between Andros and Tinos Islands, Greece. |
| 1945 | Sibyl (P217) | HMS Sibyl sinks 11 small Japanese vessels with gunfire in the Stait of Malacca. |
