24-03-1940 : Trident torpedoes and sinks the German merchant Edmund Hugo Stinnes 4 off Jylland, Denmark.
08-04-1940 : HMS Trident torpedoes and sinks the German tanker Stedingen south of the Oslofjord.
10-04-1940 : HMS Trident fires two torpedoes against the German merchant Wandsbek south-south-east of the Oslofjord. Both torpedoes missed.
25-04-1940 : HMS Trident fires two torpedoes against the German merchants Palime and Pelikan about 30 nautical miles south-west of Lindesnes, Norway. Both torpedoes missed.
23-06-1940 : HMS Trident fires four torpedoes at the German oiler Dithmarschen north of Frohavet. The torpedoes missed.
27-12-1940 : HMS Trident fires five torpedoes against a darkened ship that entered Punta Delgada, Azores. All five torpedoes missed their target.
19-08-1941 : HMS Trident damages the German merchant Levante east of Havoysund, Norway.
22-08-1941 : HMS Trident torpedoes and sinks the German merchant Ostpreuaen in the Kvaenangenfjord, Norway.
30-08-1941 : HMS Trident torpedoes and sinks the German merchants Donau II and Bahia Laura in Lopphavet, Norway.
03-09-1941 : While returning to base at Polyarnoe, Russia, HMS Trident is fired upon but missed by the German submarine U-566.
30-09-1941 : HMS Trident fires three torpedoes against the German hospital ship Birka in the Breidsundet about 4 nautical miles north-west of Havaysund, Norway. All three missed.
03-11-1941 : HMS Trident torpedoes and sinks the German auxiliary submarine chaser UJ 1213/Rau IV in the Porsangerfjord.
07-11-1941 : HMS Trident fires three torpedoes against the German minesweeper depot ship MRS 3/Bali north of the Laksefjorden. The torpedoes missed.
20-04-1942 : HMS Trident torpedoes and sinks the German merchant Hadur in the Svefjord, Norway.
03-04-1943 : HMS Trident fires 6 torpedoes against a submarine off La Spezia, Italy. All torpedoes missed their target.
14-04-1943 : HMS Trident attacks the German auxiliary submarine chaser UJ 2202 with gunfire south-east of Capo Mele, Italy.
12-05-1943 : HMS Trident unsuccesfully fires 6 torpedoes at the Italian merchant Agnani east of Cevrione, Corsica, France.
14-05-1943 : HMS Trident unsuccesfully fires 4 torpedoes at the French passenger/cargo ship Cap Corse north-west of Corsica.
27-06-1943 : HMS Trident sinks a sailing vessel with gunfire north of Crete.
02-07-1943 : HMS Trident sinks three sailing vessels with gunfire off Rhodos, Greece.
03-07-1943 : HMS Trident torpedoes and damages the Italian merchant Vesta west of Leros, Greece.
04-07-1943 : HMS Trident sinks two sailing vessels with gunfire off Symi.
08-07-1943 : HMS Trident damages the German patrol vessel GA 41/Tassia Christa with gunfire some 20 miles north of the Doro channel.
02-06-1945 : HMS Trident sinks a Japanese sailing vessel with demoliotion charges in the Strait of Malacca.
18-06-1945 : HMS Trident sinks a Japanese landing craft with gunfire in the Strait of Malacca.