Even as peace talks progressed and stalled, Indonesia maintained its campaign of infiltrations. On 15 August, a headman reported an incursion in the 3rd Division and a follow-up indicated they were about 50 strong. A series of contacts ensued as 2/6 Gurkhas deployed patrols and ambushes, and after a month, 15 had been killed and three captured. The Gurkhas reported that they were well trained and professionally led, but their ammunition expenditure was high, and their fire discipline broke down. The prisoners reported 300 more invaders within a week and 600 in a fortnight. The Battle of Long Jawai was the first major incursion for the centre of the 3rd Division, directed by an RPKAD Major Mulyono Soerjowardojo, who had been sent to Nangabadan earlier in the year. The proclamation of Malaysia in September 1963 meant that Malaysian Army units deployed to Borneo (now East Malaysia).