I admire both the Vietnamese and Indonesian militaries. In terms of professionalism and in confidence. They're both actually quite low key (takes on a low profile) during this stage. I see so much similarities in both the Indonesian and Vietnamese militaries with that of Japan's. Both (Indonesia and Viet Nam) are not pushovers, and will fight and intervene in order to secure their borders.
In Vietnam's case, it was the Invasion of Cambodia to eject the genocidal Khmer Rouge, whilst at the same time fighting a Chinese Invasion in 1979. Another example was Vietnam's involvement in helping defend the Laotians during the 1988 Thai-Lao Border War, which saw massive Thai casualties and prevention of Thai offensives to take Lao territory. It was a Lao victory and status ante-belllum was observed.
In Indonesia's case, it was the ejection of Dutch Forces from the Archipelago, then later defeating the Dutch in the Indonesian invasion of Irian Jaya , thereby seizing the West of Papua, then in the 1980s seized Timor Leste from the Portuguese colony. Prior , as well, Indonesia was not afraid to go head on against Australians, British, and Malays during the 1960s Konfrontasi -- in Indonesia's (Sukarno led) decision to counter the birth of Malaysian Federation. Indonesia, by her own right, is not afraid to fight in what it believes to be threats to the national concept of 'NUSANTARA'.
I admire these aspects of Indonesia and Viet Nam. They both will not bag down from a fight. And they will fight, when push comes to shove.