Anzac Day, the national day of remembrance in Australia and New Zealand, is here.

Recognised annually on April 25, the day marks the anniversary of the first major military campaign fought by Australian and New Zealand soldiers during the First World War.

On this date in 1915, the troops, who quickly became known as the Anzacs, landed in Turkey, joining the allied expedition that planned to capture the Gallipoli Peninsula.

Since the date was officially named Anzac Day in 1916, remembrance services have taken place to celebrate the bravery of those who fought in Gallipoli, with memorial events now held across the globe to honour all those who served and died in conflicts. Unfortunately, many of this year's events will not take place due to the coronavirus outbreak.

From the history of events that took place on April 25 to today's worldwide commemorations, here is the story of Anzac Day.

What does 'Anzac' stand for?

The term 'Anzac' stands for Australian and New Zealand Army Corps. The group of soldiers formed in Egypt in December 1914, and were commanded by General William Birdwood, comprising of troops from the First Australian Imperial Force and First New Zealand Expeditionary Force.

The Anzacs are most well known for operating in the Battle of Gallipoli in 1915, but they also briefly reestablished in 1941, serving in the Battle of Greece during the Second World War.