For a rather informative read on this solemn occasion
http://en.wikipedia.org/wiki/Anzac_DayFor most Australian and new Zealand citizens this is a day of remembrance for their fallen soldiers, originally the day was chosen to mark the ill fated landing at Gallipol in the first world war that cost many allied lives and brought home the horror of war to the general populace at home, the final sacrifice made by many in times of war underpin our values and freedoms that we all take for granted today, we all owe a debt to the fallen, lets us all remember the true cost of freedom and those who have paid it.