Philippine security forces collaborated with Malaysia and Indonesia to maintain security in the Sulu Sea. The Indonesian government proposed to station army units in Mindanao to launch a major offensive against Abu Sayyaf. The Indonesian government called on the Malaysian and Philippine armies to launch combined land attacks together on Mindanao, while at the same time urging the Philippine government to allow Indonesia and Malaysia military forces to enter Philippine territory. The Vietnamese military started to hold military exercises against Abu Sayyaf (known locally as "pirates" by the Vietnamese) following the repeat kidnappings of Malaysian and Indonesian sailors. The Philippine military provided one battalion to go against each subgroup. On September 9, following the meeting between President Duterte and Indonesian President Joko Widodo, an agreement was reached to pursue the Abu Sayyaf. The Philippine President said in a statement: