In the U.S. presidential election, the Republican Party’s nominee, Donald Trump, clashed with his Democratic Party rival, Kamala Harris, over issues such as abortion, immigration and foreign policy. A Nigerian international affairs expert says the candidates brought up issues important to Africa in their debate. Around the United States, people marked the anniversary of the 9-11 terrorist attacks, which began what the U.S. called the Global War on Terrorism against al-Qaida and groups such as the Islamic State and its Africa affiliates.