 The two discussed the possibility of a peaceful end to the conflict.After several meetings with the top brass of Kodam VII / Brawijaya and also leaders of the military operation against Permesta called Operation "Independence" or "Operasi Merdeka", Tumbelaka was flown into Manado on 5 January 1960 in an attempt to meet with the leaders of Permesta in secret.On 15 March 1960, Tumbelaka met with Col. Daniel Julius (D.J.)