ANZAC was the name given to the Australian and New Zealand Army Corps soldiers who landed on the Gallipoli Peninsula in Turkey early on the morning of 25 April 1915 during the First World War (1914-1918).
While ANZAC day still remembers these brave men, the meaning has been widened to be a rememberence for all those who served and who gave their lives serving.
As a result, this one day in the year involves the whole of Australia in solemn ceremonies of remembrance, gratitude and national pride for all our men and women who have fought and died in all wars.
Last year I linked to news.com.au's memories page; this year they have invited members of the public to post messages which will be forwarded to currently serving members here.
It is interesting to read the messages posted.