Events mark 100 years since the bloody WW1 Gallipoli campaign

Allied forces were locked in an eight-month stalemate with Ottoman troops before pulling out in January 1916

It was the first campaign leading to major casualties for Australian and New Zealand forces during the war

Dawn service held on Gallipoli peninsula attended by Australian and NZ prime ministers, Prince Charles and Prince Harry

The Queen, Prince William and party leaders attend Cenotaph ceremony in London before service at Westminster Abbey