2015 $1 Anzac Centenary Silver Proof CoinOn 25 April 1915, Australian troops landed on Turkeys Gallipoli peninsula in an allied attempt to seize control of the Dardanelles. The fighting quickly bogged down into a stalemate, with the Turks holding the heights above the Anzacs for the rest of the campaign. The battles in which the Australians fought there, are among the most well known of the First World War.