Battle of Basilan was a military offensive launched by the Philippine military to apprehend two lead commanders in the Abu Sayyaf Islamic militia wanted for corruption, money laundering, and terrorism related charges. The main cause of the operation was Sayyaf leader Indama and his followers threatening and attempting to exhort money from a circumferential road network. The two-day offensive ended with the both suspects evading capture and the island of Basilan falling under government authority. Both the army and MNLF collaborated in fighting alongside for a duration of the operation the first such instance since a truce. However collaborators within the Sayyaf militia included members of the MNLF who sympathized with their cause or had public relations with some of the militants.