The term ANZAC Day, Down Under Holiday is a national holiday in Australia and New Zealand. It is held on April 25th each year to commemorate the members of the Australian and New Zealand Army Corps (ANZAC) who fought at Gallipoli in the Ottoman Empire during World War I. ANZAC Day is a day of remembrance and respect for those who served and died in war. It is also a day of reflection on the cost of war and the importance of peace.