ABC News (Australia) 
February 14, 2014
The RAAF monitored an unprecedented and unannounced exercise involving three Chinese warships in international waters to the north of Australia, it has emerged.
The unusual naval exercise late last week is considered to have been a deliberate and provocative move by the Chinese that will send a clear message to the region.
For the first time, the Chinese navy sent warships sailing through the Sunda Strait between the Indonesian islands of Java and Sumatra.
The ships travelled along the southern edge of Java, close to Christmas Island, and then through the Lombok Strait between Lombok and Bali.