2015 West African offensive
Part of the Boko Haram insurgency
Wilayat al Sudan al Gharbi maximum territorial control.png
Boko Haram's territorial control prior to the offensive.
Date23 January – 24 December 2015
(11 months and 1 day)
Location
Northeast Nigeria, Northern Cameroon, Southeast Niger, Western Chad
Result

Multinational Joint Task Force victory

  • Boko Haram militants retreat to the Sambisa Forest
Belligerents

Multinational Joint Task Force

  •  Nigeria
  •  Cameroon
  •  Chad
  •  Niger

Local militias

STTEP (foreign mercenaries)

Islamic State of Iraq and the LevantISIL

  • Wilayat Gharb Afriqiya(from March 2015)
  • Boko Haram(until March 2015)
Commanders and leaders

NigeriaMuhammadu Buhari (from May 2015)
NigeriaGoodluck Jonathan (until May 2015)
NigeriaKashim Shettima
NigeriaIsa Yuguda (until May 2015)
NigeriaEeben Barlow
CameroonPaul Biya
ChadIdriss Déby

NigerMahamadou Issoufou

Islamic State of Iraq and the LevantAbubakar Shekau

Islamic State of Iraq and the LevantAbu Musab al-Barnawi
Strength

Nigerian Army:
130,000 active frontline personnel;
32,000 active reserve personnel
Nigeria Police Force:
371,800 officers
Multinational Joint Task Force:
7,500 active personnel
(excluding Cameroon and Nigeria)
Cameroonian Armed Forces:
20,000 active personnel

United States300 advisers
ISIL: 7,000–10,000