RAAF and ASEAN Air Forces

😡 In 2003 the RAAF was alarmed when the Indonesian Air Force receive their Su-27/30, but the Indonesian Air Force or TNI-AU have only two of each,while RAAF still have 75 F/A-18 Hornets and 36 F-111 operational until 2015, why does Indonesia pose such a threat to Australia?

Australia has worried about Indonesia since the 60’s and that was the main reason for the aqcuisition of F-111s, but how could the Indonesians attack Australia if they have so many internal problems?