Anzac Day - memorial for World War I soldiers from Australia and New Zealand who fought in Galipoli in Turkey - the first time Australians fought abroad, in what is now considered to have been a futile battle.
"They shall grow not old, as we that are left grow old; Age shall not weary them, nor the years condemn. At the going down of the sun and in the morning we will remember them." (Laurence Binyon, 1869-1943, The Ode to the Fallen)