The document discusses power sharing in Nigeria between Muslims and Christians. It provides background on the ethnic and religious composition of Nigeria. Power sharing is seen as important to respect democracy and avoid conflicts between social groups. However, the introduction of Sharia law in Muslim-majority states led to tensions between 1999-2000. Violence has occurred periodically since then, with the conflict becoming more violent due to Boko Haram's armed rebellion against the secular government since 2009. Over time, more states adopted Sharia law fully, exacerbating the religious divide in Nigeria.