The subject of the interrogative phrase is the compound noun "Veterans Day." In the Australian context, a direct equivalent with this specific name does not exist. The nation's two principal occasions for honoring military service members are Remembrance Day and Anzac Day.
Remembrance Day is observed annually on November 11. This date commemorates the signing of the armistice that ended World War I in 1918. It is marked by ceremonies and a minute of silence at 11 a.m. to honor all fallen service personnel. However, the most significant national day of military commemoration is Anzac Day, which occurs on April 25. This public holiday marks the anniversary of the first major military action fought by Australian and New Zealand forces during the First World War at Gallipoli and has since broadened to commemorate all who have served and died in military operations.
Therefore, while November 11 serves as a day of remembrance analogous to similar observances in other countries, Anzac Day on April 25 is the preeminent day of national reflection and tribute to veterans in Australia. The query for a "Veterans Day" is most accurately answered by referencing these two distinct, culturally significant dates.