Here's my opinion on this based upon the information in the following links -
Indonesian Military Strength Statistics
Australian Military Strength Statistics
Indonesian Army has a huge number of soldiers.....active, reserve and paramilitary compared to Australia....thats a given looking at the statistics
Indonesian has twice as many Navy ships as Australia.
Australia has 1 port more than Indonesia
Australia has 6 submarines compared to indonesias two.
Looking at the rest of the Navy statistics even thou Indonesia might be a "tad" more in most areas I think Australia would be a bit better than the
Indonesian due to better training, technology.
Australia has 153 more aircraft than Indonesia....for an invasion of Australia they are going to need a hell of a lot more planes than that!
We have 116 more helicopters than them........
Australias Defence Budget is 22 Billion USD, Indonesias is 4.7 Billion USD....that is a HUGE difference....and considering how small in number our
forces are you can bet we are developing and using worlds best technology and practice for that sort of coin.
The Indonesians could try and get all their troops here by sea thou very slowly and ineffectively due to the small number of ships they have, the
number of troops they would need to bring in all at once and not including logistical facilities to ship over to build forward bases....... they sure
as hell couldn't do it by air....
Australia would blast them out of the water with their navy before they could get an effective force on shore....our air force would destroy their
planes before they got within striking distance of our shoreline, and our missiles would level any port/airport/base etc as soon as our Xband radar
would cop a hint of an inpending attack.....
trust me, Australia would hold its own until backup would get here if it would....Australian in the face of adversity would enlist on masse.
We are not a country that you can just walk into and occupy......America cant do it with Iraq or Afghanaistan even with Nato assitance and to think a
country like Indonesia could do it with Australia would be pure fantasy!