Quick Guide, 2024-25

Military anniversaries 2025: a quick guide

Defence

Author

Melissa George

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Key points

  • This quick guide outlines some of this year’s significant military anniversaries. It will focus on the 80th anniversary of the end of the Second World War and the 110th anniversary of the Gallipoli campaigns of the First World War.
  • Other significant commemorations in 2025 include the 80th anniversary of Sandakan Memorial Day and the 75th anniversaries of Australia’s involvement in the Korean War and the Malayan Emergency.
  • This year also marks 30 years since Australia’s involvement in the United Nations Assistance Mission (UNAMIR) in Rwanda, known as Operation Tamar.
  • This guide does not include anniversaries such as Anzac Day and Remembrance Day, which are commemorated every year.

Military anniversaries 2025

First World War (1914–18)

Gallipoli campaign

This year marks 110 years since the start of the Gallipoli campaign of the First World War.

At Gallipoli, Allied forces attempted to overrun the Ottoman-held peninsula (now present-day Türkiye) in the Dardanelles. The campaign was ‘the first major amphibious operation in modern warfare’ but it failed to achieve its objectives and had disastrous costs for all sides.

On 25 April 1915, some 16,000 men from the Australian and New Zealand Army Corps (Anzacs) conducted an amphibious landing on Gaba Tepe (now known as Anzac Cove), with plans to advance to Sari Bair and across the peninsula. In the first landings alone, more than 2,000 Australians were killed or wounded.

Later attempts to break through the Turkish lines included Australian offensives at Lone Pine, which was fought from 6 to 9 August 1915, and the 3rd Light Horse Brigade’s assault at the Nek on the northern end of the Anzac front line on 7 August. Of the 600 Australians involved in the battle of the Nek, 249 died and over 100 were wounded. At Lone Pine, almost 2,300 Australians from 6 battalions were killed or wounded and over 6,000 Turkish soldiers were killed or wounded. Seven Australians received the Victoria Cross for their actions at Lone Pine – the highest number awarded to an Australian division for one action and testimony to the Anzac spirit.

At least 44,000 Allied soldiers were killed during the Gallipoli campaign, including 8,141 Australians. A further 26,111 Australian soldiers were wounded. For the Ottoman Empire, victory came at a high price, with at least 85,000 soldiers killed during the campaign. Well-executed operations saw 36,000 Anzacs evacuate Gallipoli in December with few casualties.

 

HMAS AE2 and the Dardanelles campaign

This year, on 30 April, marks the 110th anniversary of the sinking of the Royal Australian Navy (RAN) submarine, the AE2, which was the first Allied submarine to enter the Sea of Marmara during the First World War.

On 25 April 1915, under Royal Navy Lieutenant Commander Henry Stoker and a crew of 35 mostly Australian submariners, the AE2 navigated the Dardanelles into the Sea of Marmara. The AE2 ran aground, navigated minefields and evaded pursuits by Turkish surface vessels to pass through the 800 m-wide Narrows of Çanakkale. This naval feat was significant given all previous attempts by Allied submarines to pass through the strait had failed:

It was uncertain whether an 'E' class vessel could pass through the Narrows and operate in the Sea of Marmara. This question became even more significant after the failure of the Allied warships to silence the Turkish coastal artillery during the great attack of 18 March 1915. If there was now to be a military landing on Gallipoli, with the aim of seizing the peninsula and putting the Turkish guns out of action, it would be a great help to have submarines operating against Turkish military transports in the Sea of Marmara.

On 30 April 1915, a Turkish torpedo boat fatally hit the AE2 and the entire crew became Turkish prisoners of war (POW). Four died in captivity and the remaining crew spent over 3 years as POWs. After the war, Lieutenant Commander Stoker received the Distinguished Service Order (DSO) ‘in recognition of his gallantry in making the passage of the Dardanelles in command of HM Australian Submarine AE2 on 25 April 1915’ (London Gazette, 22 April 1919).

End of the Second World War (1939–45)

This year marks the 80th anniversary of the end of the Second World War (1939–45), which involved more than 50 nations resulting in an estimated 15 million combatant deaths, around 25 million wounded and more than 45 million civilians killed.

Victory in Europe (VE) Day on 8 May marks the end of the Second World War in Europe, with Germany’s unconditional surrender to the Allies. Victory in the Pacific (VP) Day on 15 August marks the war’s end in the Pacific, with the surrender of Japan. It followed the atomic bombings of Hiroshima and Nagasaki in Japan on 6 and 9 August, respectively, which killed more than 110,000 people (although these numbers remain contested).  

More than a million Australian military personnel served in the Second World War – 926,900 men and 66,100 women. Australians fought in campaigns against Germany and its allies in Europe, the Mediterranean and North Africa, and against Japan in Southeast Asia and the Pacific. In 1942–43, Japanese air raids across the north and north west of Australia killed as many as 320 people and the midget submarine attack on HMAS Kuttabul in Sydney Harbour in 1942 killed 19 Australian and 2 British sailors. The names of 39,657 Australian service personnel are included on the Second World War Roll of Honour. Over 30,000 Australian service personnel became prisoners of war. Of the 8,000 Australians taken prisoner by the Germans and Italians, 265 died. In Southeast Asia, the Japanese held 22,376 Australians, including army nurses and civilians. Of those, 8,031 Australians died while in captivity.

While estimates vary, some sources estimate that between 60 to 80 million people were killed worldwide during the war, including 6 million Jewish people during the Holocaust. Civilians made up an estimated 50–55 million deaths and the military comprised
21–25 million of those killed, with millions more injured.

Borneo campaign

Near the end of the Second World War, Australia played a critical role in Allied operations in and around Borneo, including the landings at Tarakan, Labuan, Brunei Bay, and Balikpapan. The Borneo campaign was part of concerted efforts to recapture the island, which had been under Japanese control since 1942.

Australian Army Research Centre contributor Gregory Strahan describes the campaign as 3 discrete operations:

The three amphibious operations - Oboe 1 (Tarakan), Oboe 2 (Balikpapan) and Oboe 6 (Brunei Bay and Labuan) - were conducted by the 7th and 9th Australian Infantry Divisions in the closing stages of the Second World War. They were supported by the US Army Corps of Engineers and powerful Allied and Australian naval and air forces operating from various locations that span present-day Indonesia, Malaysia and the Philippines.

On 1 May 1945, the 26th Brigade (of the 9th Division) led the first assault and secured an airfield to support subsequent Oboe landings. This operation saw the heaviest fighting of the campaign to clear overlooking hills in the area. Relative to the number of troops involved, Tarakan was the costliest of all the Oboe operations. Around 900 Australians were injured and 225 were killed, including Victoria Cross recipients Lieutenant Thomas Currie Derrick of the 2/48th Battalion and Corporal John Mackey of the 2/3rd Pioneer Battalion.

At Brunei and Labuan – the sites of the second part of the campaign – the remaining brigades of the 9th Australian Division conducted amphibious assaults to secure Brunei Bay for use as a base by the British Pacific Fleet. Australian forces captured Labuan and its airfield early on, but faced strong resistance from Japanese forces as they moved inland. The final operation in July against the Japanese at Balikpapan, south-east Borneo, involved 33,000 army, air force and navy personnel in ‘the largest ever amphibious assault by Australian forces’. Aircraft of the 1st Tactical Air Force, including 3 squadrons of RAAF Liberator heavy bombers, supported ground operations from the air. The Japanese abandoned their positions within 3 weeks.

Over 2,000 Japanese soldiers were killed in the Borneo campaign. More than 500 Australians also died there and a further 1,400 were wounded.

Sandakan Memorial Day

The 80th anniversary of Sandakan Memorial Day on 15 August 2025 honours the Australian and British soldiers who were held at Sandakan, North Borneo, as POWs between 1942 and 1945. It also honours the sacrifice of the local Sabahans who risked their lives to help the prisoners.

From 1942 to 1943, the Japanese interned some 2,700 Allied servicemen at Sandakan. The prisoners were used as forced labour to build a military airstrip. Some were transferred, but by 1945, more than 1,000 had perished. Between January and August 1945, more than 2,400 Australian and British POWs died while prisoners at the Sandakan POW camp. Some 1,787 Australians and 641 British soldiers died during the forced marches and at Ranau. Of the total 2,434 prisoners at Sandakan, only 6 – all Australians – survived after they escaped and were cared for by local Sabahans. Two escaped in June 1945 during the second death march (Gunner Owen Campbell and Bombadier Richard Braithwaite) and 4 others escaped in July 1945 from Ranau (Private Nelson Short, Warrant Officer William Hector Sticpewich, Private Keith Botterill and Lance Bombadier William Moxham). In 2010, the Governor-General, Quentin Bryce, acknowledged the horrors of Sandakan and paid tribute to local Sabahans who helped the escaped men:

Something extraordinary had sustained them, and something else extraordinary took over.

With the nourishment, shelter and safety given by local Sabahans – (some of you here with us now) – these men were nursed back to life and health.

You had lost 28 of your leaders and 16% of your community to senseless execution.

Your land, buildings and infrastructure had been decimated.

You nevertheless risked your lives and your livelihoods for our men – for those who lived and those who died.

Thank you. Thank you.

Operation Semut

This year, on 25 March, Australia and Malaysia commemorated the 80th anniversary of Operation Semut at a ceremony in Bario, Sarawak.

Operation Semut, ‘a Z Special Unit secret operation in Borneo in 1945’ stands as one of Australia’s ‘first independent special forces operations’. Led by Special Operations Australia, Semut involved parachuting several parties of Allied forces operatives into British Borneo behind enemy lines to oppose Japanese forces at the end of the Second World War.

The operation was a tactical success in helping to drive the Japanese from Borneo. Its special unit members collected and reported intelligence and organised, trained and armed the local indigenous Dayaks to wage guerrilla warfare against the Japanese.

Korean War (1950–53)

On 25 June 2025, Australia marks the 75th anniversary of its involvement in the Korean War. To commemorate the occasion, the Department of Veterans’ Affairs will hold a National Commemorative Service at the Australian National Korean War Memorial in Canberra.

The Korean War was a defining ‘Cold War’ moment that saw the world’s countries split between support for a democratic south and a communist north. The Democratic People’s Republic of Korea crossed the 38th parallel and captured Seoul in June 1950. At the request of the Republic of Korea (ROK), the United Nations Command (UNC) was established under UN Security Council resolutions 83 and 84. During the war, 22 UN member states, including Australia, deployed military forces in support of the ROK.

Australia was the second nation (after the US) to commit military forces to defend the ROK and would eventually become the fifth-largest contributor to UNC. Around 18,000 Australian soldiers, sailors, airmen and nurses served in Korea during the war and also during the initial post-armistice period of 1953–57. Between 27 June 1950 and 27 July 1953, a total of 340 Australian service personnel were killed and more than 1,200 were wounded. Another 30 Australians were taken prisoner and 43 service personnel are still listed as missing in action in North Korea.

An Armistice Agreement has been in place since July 1953, which is still enforced by United Nations Command. Australia still contributes personnel, including the first Australian to hold the position of UNC Deputy Commander, Vice Admiral Stuart Mayer (July 2019–December 2021). He was only the second non-American to do so in the history of the UNC. An Australian RAAF officer also fills the position of Commander UNC-Rear at Yokota Air Base, Japan, on certain rotations.

Malayan Emergency (1948–60)

This year marks 75 years since Australia’s involvement in the Malayan Emergency. Foreign policy analyst and author, Mark Curtis, has described the 12-year-long counter-insurgency campaign as follows:

Between 1948 and 1960 the United Kingdom (UK) fought a counter-insurgency campaign in Malaya, conventionally called the Emergency. A guerrilla war waged by the Malayan National Liberation Army (MNLA) sought to win independence from the British Empire and protect the interests of the Chinese community in the territory. The MNLA was largely the creation of the Malayan Communist Party, most of whose members were Chinese, but also included small minorities of Indians and Malays.

Triggered initially by widespread attacks on major resources and sites across the British colony of Malaya (now Malaysia), the MNLA insurgency represented a ‘national liberation war’, resulting in a state of emergency being declared. The reason it was described as an ‘emergency’, rather than a conflict or war, is because it was believed insurers would not compensate plantation and mine owners if it had been labelled as a war.

According to the Australian War Memorial:

Australia’s involvement began in 1950 with the arrival of RAAF aircraft and personnel in Singapore. Dakotas from 38 Squadron were deployed on cargo runs, troop movements, and paratroop and leaflet drops in Malaya, while 6 Lincoln bombers of 1 Squadron provided the backbone of aerial operations. 

From 1954, there were 24 infantry battalions in Malaya from a wide variety of Commonwealth countries, including Australia and New Zealand. 

Australia also provided artillery and engineering support, and an airfield construction squadron built the main runway for the air force base at Butterworth. RAN ships also served in Malayan waters. From October 1955, the 2nd Battalion, Royal Australian Regiment, conducted extensive patrols and other operations, mainly in Perak, an area of communist activity.

The insurgency lost momentum in the wake of the Federation of Malaya’s independence, which was granted in August 1957 and, on 31 July 1960 the Emergency was declared to be over. More than 500 soldiers and 1,300 police had been killed and communist losses were estimated at over 6,000 killed and 1,200 captured.

The campaign was one of the few effective counter-insurgency operations undertaken by the Western powers. Over the course of those operations, 39 Australian servicemen were killed, with 15 deaths occurring as a result of operations. Another 27 Australians were wounded.

Operation Tamar, Rwanda (1994–95)

This year marks 30 years since the completion of Australia’s involvement in Operation Tamar; Australia’s contribution to a United Nations peacekeeping mission in Rwanda from 1 January 1994 to 31 December 1995.

In October 1993 the UN Security Council established an international force under Resolution 872 (1993) to support the parties to the recently signed peace accord (Hutu Government of Rwanda and Tutsi-led Rwandese Patriotic Front (RPF)) in implementing the agreement. The authorised strength of the United Nations Assistance Mission for Rwanda (UNAMIR) was expected to be around 2,548 personnel, which the UN struggled to achieve.

On 6 April 1994, the plane carrying the presidents of Burundi and Rwanda crashed after it was hit by a rocket, killing the occupants. This event precipitated a rapid escalation in civil violence that resulted in genocide against the Tutsi population.

On 21 April 1994, the UN Security Council reduced the strength of peacekeepers to 270 personnel (Resolution 912 (1994)). By May 1994, the UN Security council authorised (Resolution 918 (1994)) increasing the mission’s strength (now UNAMIR II) to 5,500 personnel, but this took more than 6 months to achieve. On 22 June 1994, the UN Security Council authorised a Chapter VII multinational humanitarian operation (Resolution 929) that would establish a humanitarian protection zone in the south-west of the country.

In an account of the Rwandan genocide 25 years on, Médecins Sans Frontières (MSF) recounted the devastating impacts of the war, stating:

In October 1990, civil war broke out between the Rwandan Armed Forces (RAF) (representing the Hutu-led government of President Juvénal Habyarimana) and the Tutsi-backed armed Rwandan Patriotic Front (RPF) forces comprised of Tutsis born in exile and based in Uganda. The RPF entered Rwanda from the north seeking to overthrow President Juvénal Habyarimana’s government, but they were halted by the RAF.
 
The Rwandan government, backed by France and Zaire, narrowly avoided being defeated. Peace talks on power sharing and returning exiled Rwandans to their country were initiated and, in 1993, the Rwandan government and RPF representatives signed the Arusha Accords. However, the Accords never came into effect; a ceasefire ended abruptly on 6 April 1994, when the plane transporting President Juvénal Habyarimana was shot down during its descent to Kigali.
 
When the subsequent massacres began, MSF teams were working in almost all of Rwanda’s prefectures. An estimated 500,000 to 800,000 Tutsis, and numerous Hutus opposing the slaughter, were executed in just 100 days.

According to the report of the independent inquiry into the actions of the UN during the 1994 Rwanda genocide (15 December 1999):

Approximately 800,000 people were killed during the 1994 genocide in Rwanda. The systematic slaughter of men, women and children which took place over the course of about 100 days between April and July of 1994 will forever be remembered as one of the most abhorrent events of the twentieth century (p. 3).

The report was damning of the international community’s lack of response to stop the genocide and particularly critical of what it described as the UN’s systemic failure (p. 3). It found that UNAMIR’s resources and mandate were insufficient and inadequate for peacekeepers to deal with the situation on the ground (pp. 31–32).

As part of Operation Tamar, Australians served in 2 rotations (ASC1 & ASC2) in Rwanda for a period of 6 months each. In total, 652 personnel served with the Medical Support Force, which later became the Australian Medical Support Force (AUSMED) – a unit that comprised ADF Medical and Surgical Personnel, Infantry Rifle Company, APC Section, Engineers, Signals, RAEME and supporting elements. AUSMED provided medical care to UN troops, UN Assistance Mission employees and Rwandans, treating serious wounds, mine injuries and road trauma cases.

On 22 April 1995, over 30 Australians serving with the UN mission witnessed the Kibeho massacre, in which an estimated 4,000 people were killed. Kibeho had become one of the largest internally displaced persons camps in Rwanda. The Australians who witnessed the massacre (medical and evacuation sections, infantry sections and a command post) had been at Kibeho since 19 April. The UN Mandate and rules of engagement restricted the actions they could take to intervene. They did what they could and provided casualty evacuation support, and conducted triage and treatment for the wounded.

Described as ‘one of the most difficult peacekeeping missions ever undertaken by the Australian Defence Force (ADF)’, the Department of Veterans’ Affairs also states:

Australia’s medical personnel performed extraordinary work in Rwanda under very challenging conditions.

All of the Australian personnel who served in Rwanda were presented with the Meritorious Unit Citation in 2020 and 4 Australians present at the Kibeho Massacre were awarded the Medal for Gallantry.