actor1: Ijaw Ethnic Militia (Nigeria)
actor2: Military Forces of Nigeria (1999-2015)
notes: Twelve are killed in a battle between the Ijaw militia and the military as the Army and Navy conducted a house-to-house sweep for weapons in Warri.
target_text: actor1: Ijaw Ethnic Militia (Nigeria), actor2: Military Forces of Nigeria (1999-2015)