1915 — HMA Submarine AE2 was sunk by an Ottoman warship in the Sea of Marmara, Turkey, with three officers and seventeen men taken prisoner. Of these men, four died as prisoners of war.

1918 — Second attack on Es Salt, Palestine. Australian, New Zealand and British troops attempted to recapture the village first taken a month before. The battle was lost at a cost of 2500 troops killed, wounded, or taken prisoner.

1941 — The last evacuation ship left Greece, bringing the Greek campaign to an end.  

1943 — The SS Wollongbar was torpedoed by Japanese submarine I-180 off Port Macquarie, NSW. The vessel sank killing 32 crew members.

1945 — German forces in Italy surrendered to the Allies. 

1965 — The Australian Government announced that combat troops were to serve in the war in Vietnam.

1915 — 1st Battle of Krithia, a defensive action against a Turkish counter-attack.

1952 — Australia ratified the Peace Treaty with Japan, officially ending the role of the British Commonwealth Occupation Force. Australian troops still in Japan were transferred to the British Commonwealth Forces Korea.

1902 — The South Australian 5th and 6th Imperial Bushmen contingents to the Boer War arrived home.

1915 — Captain Alfred Shout won a Military Cross near Gaba Tepe, Gallipoli, for showing conspicuous courage and ability in organising and leading his men in thick, bushy country, under heavy fire. Shout was later awarded a Victoria Cross at Lone Pine.

2003 — 75 Squadron RAAF Hornets flew their last mission over Baghdad in Operation IRAQI FREEDOM.

1941 — Six Australian warships were involved in Operation DEMON, the evacuation of Allied personnel from Greece.

1943 — Japanese submarine I-26 torpedoed and sank the merchant ship Limerick off Cape Byron, NSW. 

1943 — A Catalina Flying boat crashed while dropping supplies to Coastwatchers on Bougainville Island. The pilot and two crew were killed. The survivors reached the Coastwatchers camp and were evacuated by submarine.

1901 — Sailors from NSW, Victoria, and South Australia returned to Australia after service in China during the Boxer Rebellion.

1915 — Landings at Gallipoli. Soldiers of the British Empire, including Australia and New Zealand, and France were involved in a series of co-ordinated landings on both sides of the Dardanelles.

1915 — HMA Submarine AE2 penetrated the Dardanelles and sank an Ottoman warship.

1918 — Victory in the Battle of Villers-Bretonneux. The final clearance of the town was undertaken with extreme ferocity and few prisoners were taken.

1918 — Second Battle of Villers-Bretonneux begins. Australian and British troops fought to regain the town that had been captured just three weeks earlier. There were 1469 Australian casualties, many due to mustard gas.

1918 — For his inspirational gallantry during the battle at Villers-Bretonneux, Lieutenant Clifford Sadlier earned a Victoria Cross.

1918 — Eleven volunteers from HMAS Australia took part in a raid on Ostend and Zeebrugge, Belgium, aimed at preventing the Germans from using these ports as bases for their submarines.

1916 — HMAS Australia and HMS New Zealand collided in the North Sea. As a result of the damage sustained in the collision, Australia could not participate in the Battle of Jutland.

1941 — The evacuation of Greece began, marking the end of an ill-conceived campaign which lasted only three weeks.

1944 — HMA Ships Australia, Shropshire, Arunta, and Warramunga provided covering fire for the landing of troops from HMA Ships Westralia, Kanimbla and Manoora at Humboldt Bay, Dutch New Guinea.