ANZAC Day commemorates those Australian and New Zealand soldiers (known as the Australian and New Zealand Army Corps, or ANZAC for short) who have given their lives in battle, specifically started to remember those soldiers who fell in the Battle of Gallipoli in Turkey during Earth's World War I. It is often marked with a dawn service on 25 April of each year.
The phrase used often with ANZAC Day is "Lest We Forget".
Aboard the CantabrianEdit
Under Captain Noah Wrightson, this tradition continued, with Ethan Arden, Elizabeth Singh and Daniel Radke attending a service on the holodeck in 2373. (Star Trek: The Cantabrian Expeditions: "Finding the Edges of Who She Is")