actor1: Police Forces of Nigeria (1999-2015)
actor2: Unidentified Armed Group (Niger)
notes: Approximately 20 people, including a Police Inspector, were killed during a bloody clash between a group of Niger nationals, allied with Chadians, suspected to be rebels and police in Maiduguri.
target_text: actor1: Police Forces of Nigeria (1999-2015), actor2: Unidentified Armed Group (Niger)