1917 — The Battle of Messines, Belgium, began.

1951 — Australian troops began patrolling across the Imjin River, Korea.

1971 — The Battle of Long Khanh, South Vietnam. 

1916 — The Returned Sailors & Soldiers Imperial League of Australia was formed.

1944 — The Normandy Landings. 

1969 — The Battle of Binh Ba, South Vietnam. 

1916 — Australian troops conducted their first raid on the Western Front.  

1946 — A RAAF pilot made the first jet-powered flight in Australia.

1900 — The Battle of Six Mile Spruit, South Africa. 

1941 — The Dunkirk evacuation concluded. 

1971 — 2 Squadron, RAAF, departed Phan Rang, South Vietnam. 

1919 — The North Russia Relief Force arrived at Murmansk.  

1944 — Australian pilots intercepted a Japanese raid over Biak, New Guinea.

1969 — HMAS Melbourne collided with USS Frank E. Evans in the South China Sea.

1967 — 2RAR arrived in South Vietnam. 

1918 — Aircraft from HMAS Sydney and Melbourne sortied over Heligoland Bight. 

1941 — The evacuation of Crete concluded. 

1973 — The RAAF received their first General Dynamics F-111 aircraft. 

1902 — British and Boer leaders sign the Treaty of Vereeniging, ending the Second Boer War.

1915 — Australian aviators support a successful British attack against the Ottoman-held town of Amara, Mesopotamia (modern-day Iraq.)

1942 — Three Japanese midget submarines attack Sydney harbour, failing to sink the USS Chicago but killing 21 Australian and British sailors berthed aboard requisitioned Sydney Ferry HMAS Kuttabul. 

1942 — 460 Squadron of the Royal Australian Air Force was among the 1047 allied aircraft which attacked Cologne in the first of the ‘Thousand Bomber Raids’. 

1990 — The Australian Government announces that women are now eligible for service in all non-combat roles within the Australian Defence Force. 

1915 — Ottoman troops attacked the position at Quinn’s Post at Anzac Cove, almost overrunning the Australian defenders in ferocious close-range fighting. 

1941 — HMAS Perth was damaged by German air attacks while evacuating allied troops from Crete.

1945 — The second of the Sandakan Death Marches begins when approximately 536 starving and diseased Australian prisoners of war were ordered by their Japanese guards to march to a new POW camp. Just 183 would survive the journey.