The Libyan Crisis refers to the current humanitarian crisis and political-military instability occurring in Libya, beginning with the Arab Spring protests of 2011, which led to a civil war, foreign military intervention, and the ousting and death of Muammar Gaddafi. The civil war's aftermath and proliferation of armed groups led to violence and instability across the country, which erupted into renewed civil war in 2014. The crisis in Libya has resulted in tens of thousands of casualties since the onset of violence in early 2011. During both civil wars, the output of Libya's economically crucial oil industry collapsed to a small fraction of its usual level, with most facilities blockaded or damaged by rival groups, despite having the largest oil reserves of any African country. U.S. President Barack Obama stated on 11 April 2016 that not preparing for a post-Gaddafi Libya was probably the "worst mistake" of his presidency. On October 23, 2020, parties signed a permanent ceasefire.