United States December 2, 2015 – In the 2015 San Bernardino shooting, two people, one of whom posted on Facebook an "oath of allegiance" to the leader of ISIL, shot and killed 14 people and injured 21 others in a killing spree that the FBI was investigating as "act of terrorism".
Chad December 5, 2015 – Four female suicide bombers from the militant Islamist group Boko Haram attacked the Chadian island of Koulfoua on Lake Chad, killing at least 15 people and injuring 130.
Yemen December 6, 2015 – The governor of the southern port city of Aden in Yemen, Jaafar Mohammed Saad, was killed in a car bomb attack. The assassination was claimed by ISIS.
Afghanistan December 8, 2015 – In the 2015 Kandahar Airport attacks several Taliban members attacked the Kandahar Airport and surrounding area. 50+ killed, 37 injured.
Egypt December 8, 2015 – An explosive device by Islamists targeting a military convoy went off in Rafah. 4 dead 4 injured.
Iraq December 9, 2015 – A suicide bomber detonated his explosives at in the doorway of a Shiite mosque. 11+ dead 20 injured.
Afghanistan Spain December 11, 2015 – In the 2015 spain embassy attack in kabul Taliban millitants detonated a car bomb and stormed a guesthouse near the Spanish embassy. 6 dead, several injured.
Syria December 11, 2015 – In the Tell Tamer bombings three truck bombs by ISIS killed up to 60 people and injured more than 80 in the town of Tell Tamer.