In the December 2016 presidential election, Jammeh was beaten by Adama Barrow, who was backed by a coalition of opposition parties. Jammeh's initial agreement to step down followed by a change of mind induced a constitutional crisis that culminated in a military intervention by ECOWAS forces in January 2017. Barrow pledged to serve at the head of a three-year transitional government. The Nigerian Centre for Democracy and Development describe the challenges facing Barrow as needing to restore "citizen's trust and confidence in the public sector". They describe a "fragile peace" with tensions in rural areas between farmers and the larger communities. They also reported on tensions between ethnic groups developing. An example is that in February 2017, 51 supporters of Jammeh were arrested for harassing supporters of Barrow. Although his election was initially met with enthusiasm, the Centre notes that this has been dampened by Barrow's initial constitutional faux pas with his vice president, the challenge of inclusion, and high expectations post-Jammeh.