The Gallipoli campaign in WWI is a hugely important event in Australian and New Zealand history. 2015 is the 100th anniversary of the landings and there are huge commemorations planned to mark the occasion.
This seems quite odd to me as the campaign was a complete failure. Even stranger still is that Australian accomplishments on the Western Front such as the Battle of Hamel are barely mentioned despite it being a brilliant victory that had a huge influence on Allied tactics for the rest of the war.
My question is are there any other famous defeats celebrated with a similar enthusiasm?
It seems for the most part they tend to be swept under the rug such as when I visited the Naval museum in St. Petersburg and saw how little space was allotted to the catastrophe that was the Battle of Tsushima.
The only two that spring to mind are the Charge of the Light Brigade which didn't strictly end in defeat for the British and the Battle of Thermopylae which some have considered a Pyrrhic victory for the Persians (though this interpretation appears to have fallen out of favour).