The navy said here on Tuesday KRI Lambung Mangkurat (LAM)-374, KRI Singa-651 (SNA), KRI Badik (BDK)-623 left the navy base of Semampir Ujung Koarmatim, in Surabaya for the training ground.
The sea exercise is held with the theme of Operation Task Force for border security of Maritime fleet command in the sea bordering on the Australian sea territory.
"This is to prevent, and to deal with illegal actions in military operations other than war," a navy spokesman Lt.Col. Maman Sulaeman said.
The scenario of the exercise is to face any unexpected strategic developments, Mana said, adding the navy has to remain on the alert against any possible problem in border area such as unilateral territorial claim, separatism, horizontal conflicts, terrorism and illegal exploitation of natural resources.
The navy, therefore, has to improve its professionalism in facing all possible threats, Maman said.(WDY)