Tecmo Koei are bringing Samurai Warriors: Chronicles Down Under later this month.
http://www.nintendoworldreport.com/news/25533
Samurai Warriors: Chronicles has been confirmed for a release Down Under alongside of the Nintendo 3DS on March 31, thanks to Twitter and various retail listings.
Samurai Warriors: Chronicles has already been announced as a launch title in both North America and Europe, but the game had no specific release date in Australia until today.