The U.S. government considers its relationship with Nigeria, Africa's largest producer of oil and its largest economy, to be among the most important on the continent. Nigeria is Africa's most populous country, with almost 180 million people, roughly divided between Muslims and Christians. U.S. diplomatic relations with Nigeria have improved since the country made the transition from military to civilian rule in 1999, and Nigeria, which ranked until recently among the top suppliers of U.S. oil imports, is a major recipient of U.S. foreign aid. The country is an influential actor in African politics and a top troop contributor to U.N. peacekeeping missions. Nigeria is a country of significant promise, but it also faces serious social, economic, and security challenges that have the potential to threaten both state and regional stability, and to affect global oil prices. The country has faced intermittent political turmoil and economic crises since independence. Political life has been scarred by conflict along ethnic, geographic, and religious lines, and corruption and misrule have undermined the state's authority and legitimacy. Despite extensive petroleum resources, Nigeria's human development indicators are among the world's lowest, and a majority of the population faces extreme poverty. Thousands have been killed in periodic ethno-religious clashes in the past decade. Years of social unrest, criminality, and corruption in the oil-producing Niger Delta have hindered oil production, delayed the southern region's economic development, and contributed to piracy in the Gulf of Guinea. Perceived neglect and economic marginalization also fuel resentment in the predominately Muslim north. The attempted terrorist attack on an American airliner by a Nigerian in 2009 and the subsequent rise of a militant Islamist group, Boko Haram, have heightened concerns about extremist recruitment in Nigeria, which has one of the world's largest Muslim populations. Boko Haram has targeted churches, among other state and civilian targets, sometimes triggering retaliatory violence and threatening to inflame religious tensions. While the group appears primarily focused on a domestic agenda, its ties with other violent Islamist groups, notably Al Qaeda in the Islamic Maghreb (AQIM), are of concern. The State Department designated Boko Haram and a splinter faction, Ansaru, as Foreign Terrorist Organizations (FTOs) in November 2013. Domestic criticism of the Nigerian government's response to the Boko Haram threat, and in particular to the April 2014 kidnapping of almost 300 schoolgirls, may have an impact on the upcoming February 2015 elections. President Goodluck Jonathan, a Christian from southern Nigeria, and his party appear set to face a strong challenge from an opposition alliance that draws support, in part, from popular disaffection with Jonathan in northern Nigeria. In the aftermath of Nigeria's last presidential elections, in 2011, protests and violence across the north highlighted strong dissatisfaction among some northerners with Jonathan's victory. Recent divisions within the ruling party, largely along geographic lines, suggest that discontent with his leadership has since grown. The opposition cannot win the presidency, however, with northern support alone. The Obama Administration has been supportive of reform initiatives in Nigeria, including anti-corruption efforts, economic and electoral reforms, energy sector privatization, and programs to promote peace and development in the Niger Delta. In 2010, the Administration established the U.S.-Nigeria Binational Commission, a strategic dialogue to address issues of mutual concern. Congress regularly monitors Nigerian political developments, and some Members have expressed concern with corruption, human rights abuses, and the threat of violent extremism in Nigeria.