It is the most populous country in Africa and the one with the largest GDP. Nigeria is a leader on the continent in more ways than one. Lagos, the country's main city, is a real commercial and financial powerhouse. Nigeria is also the beating heart of Africa on the cultural level, from Afrobeat to cinema, with Nollywood. An important diplomatic and military power in the region, Nigeria could become the third most populous country on the planet by 2050, just behind India and China. But before establishing itself on the international scene, the country still has many challenges to overcome: glaring inequalities, inter-ethnic rivalries, endemic corruption, jihadist violence, etc.