The United States and Russia are at odds on so many issues that the upcoming summit could convince their two presidents to give up on better relations and accept estrangement.

February’s presidential election does not inspire confidence in the democratic trajectory of Africa’s most populous country.

Donald J. Trump and Xi Jinping plan to hold a bilateral meeting on the sidelines of the G20 summit in Japan, but it’s not clear that an end to tariffs is in sight.

Gulf powers have lined up behind Sudan’s ruling military council. Where Sudan goes from here could depend on whether other powers play a countervailing role.