Governor-General Quentin Bryce has paid her respects to current and former Australian soldiers at an Anzac Day service at Papua New Guinea's Bomana war cemetery.
At Thursday morning's ceremony, Ms Bryce was joined by PNG Prime Minister Peter O'Neill and Australian High Commissioner to PNG Deborah Stokes, as well as her PNG counterpart Sir Michael Ogio.
More than 2000 people armed with glow sticks crowded into Bomana, located about 19km outside of Port Moresby.
"Wherever we come from and wherever we go, this is a day that gives pause and silence to our journey," Ms Bryce said in a short speech.
"A moment to remember the Australian soldiers, merchant navy men and airmen - and members of the Papua New Guinea local forces - who died defending this territory and ours.
"The tranquility of this clearing belies the desperate, bloody confrontations of the Kokoda campaign that took place beyond."
Bomana is final testing place to more than 3000 soldiers killed serving in Papua New Guniea.
Australia and PNG formed close ties during World War II, with Australian soldiers being aided by locals known as Fuzzy Wuzzy Angels.
Ms Bryce will later fly to Isurava and Kokoda to pay her respects at memorials in both locations.
Anzac Day will mark the fourth day of Ms Bryce's five-day state visit to PNG.