14 in King George V class battleship HMS Prince of Wales with 15 in battlecruiser HMS Repulse in the background at Singapore, December 1941, just before the ill fated sortie which led to their destruction by Japanese aircraft off Malaya.
15 in battlecruisers HMS Hood and HMS Repulse pictured pre-war: both were to be sunk in 1941, leaving Repulse's sister Renown (which had been significantly modernised in the 1930s, unlike these two) as the sole remaining battlecruiser in the Royal Navy. 'The largest destroyer in the fleet' gave excellent WW2 service.
15 in battlecruiser HMS Repulse in 1938: unlike sister Renown, which was extensively modernised in the 1930s, her appearance is much as in WW1. She was deemed too weak in anti-aircraft armament to operate in the Mediterranean, and was deployed with Prince of Wales to the Far East in late 1941 - where ironically both were swiftly sunk by Japanese aircraft.