Welcome to Foreign Policy ’s Africa Brief . The highlights this week: A large Nigerian delegation arrives in England to cement closer bilateral ties, President Denis Sassou Nguesso extends his 42-year rule in the Republic of the Congo, and Rwanda threatens to withdraw troops from counterterrorism operations in Mozambique . Historic Visit Nigerian President Bola Ahmed Tinubu began a two-day historic state visit to the United Kingdom on Wednesday. King Charles III and Queen Camilla are hosting