There have been some suggestions for coordinated surveillance of Malacca, Sunda, Lombok, and Ombai Wetar Straits through the collaborative use of the A&N Islands and Australia’s Keeling (Cocos) ...
Indonesia sits on all the major ingress routes to the South China Sea with control over Malacca, Sunda, Lombok and Ombai-Wetar straits, stretching from QUAD partners India to Australia.