HMS Revenge was the lead ship of five Revenge-class super-dreadnought battleships built for the Royal Navy during the First World War in the mid-1910s. The ships were developments of the Queen Elizabeth-class battleships, with reductions in size and speed to offset increases in armour protection whilst retaining the same main battery of eight 15-inch (381 mm) guns. She was laid down in 1913, launched in 1915 and commissioned in February 1916, early enough to be worked up to see action with the Grand Fleet at the Battle of Jutland in May that year. During the engagement, she engaged German battlecruisers, damaging two of them before being forced to turn away to avoid torpedoes that damaged her squadron flagship and caused the squadron to lose contact with the rest of the fleet. Revenge emerged from the battle unscathed, but she saw no further action during the war, as the British and German fleets turned to more cautious strategies owing to the risk of submarines and naval mines.

Operation Fish was the relocation of British money and gold ingots from the United Kingdom to Canada for safekeeping during the Second World War. It was the largest known movement of physical wealth in history.