Invincible and Indefatigable class battlecruisers

The three Invincible class battlecruisers were the armoured cruiser equivalents of HMS Dreadnought, fast and armed with 12in guns.
The Indefatigable class battlecruisers were very similar to the earlier Invincible class battlecruisers.
HMS Indefatigable was the nameship of the Indefatigable class of battlecruisers. She took part in the hunt for the German battlecruiser Goeben in August 1914 and the first bombardment of the Dardanelles, before being lost at Jutland.
HMAS Australia was an Indefatigable class battlecruiser funded by the dominion of Australia to serve as the flagship of the new Royal Australian Navy.
HMS New Zealand was an Indefatigable class battlecruiser that had been paid for by the dominion of New Zealand, but then presented to the Royal Navy on completion.