Thousands of people have attended Anzac Day services on the 91st anniversary of the landings at Gallipoli, in Turkey, during the First World War.
This is the first year no Anzac veterans are alive for the commemoration services.
But hundreds of their descendants are expected to attended the marches.
At the dawn service in Canberra, the air force's principal chaplain, Royce Thompson, said the day is one to remember all Australians who left for war.
He said it is thanks to those servicemen and women that Australians have the right to speak freely and choose where to live and work.
"It's a time when we remember all who have served our country during times of conflict and crisis," he said. "It's a time to reflect on the selfless sacrifice of those who died and were wounded to preserve our freedom."