The drillsare amid heightened government concerns over a rising number ofIndonesians pledging loyalty to IS and attempting to join fighting inIraq and Syria.
IS is a potential security threat and Indonesiais preparing forces to respond to that, said military spokesman MajorGeneral Mochamad Fuad Basya.
He added that the exercises are routine and similar drills will be held elsewhere in the country.
Indonesia has the world's largest Muslim population, the vast majority of which practice a moderate form of the religion.
It saw a spate of militant attacks in the 2000s, the deadliest ofwhich was a nightclub bombing on the holiday island of Bali that killed202 people, most of whom were tourists.
Police have been largely successful in dismantling domestic militant cells since then.
However, officials now worry about a militancy resurgence inspired by groups like IS and returning Indonesian IS members.-VNA