actor1: Military Forces of Nigeria (1999-2015)
actor2: MEND: Movement for the Emancipation of the Niger Delta
notes: Villagers in Delta state's Gbramatu kingdom reported Oporoza and Okerenkoko villages being attacked with heavy machine-gun fire from low-flying helicopters on 15 May. Military claims to have killed 200 militants during armed battle.
target_text: actor1: Military Forces of Nigeria (1999-2015), actor2: MEND: Movement for the Emancipation of the Niger Delta