Australia’s Strategic Update: What it means for Indonesia
The Indonesian archipelago would play a critical strategic role in any confrontation with China- including further afield in north east Asia or Taiwan . China's vulnerability to energy and trade through the shipping routes is significant and it would not be difficult to blockade with regional cooperation. China is well aware of this which is why I find their current spread of aggression odd.
The article above provided an excellent overview of the complexities of dealing with Indonesia from an Australian perspective.