A failure by the United States to continue military aid to Ukraine would spell disaster for Ukraine and its Western allies while emboldening Russia and other potential aggressors.

Congo’s elections on December 20 are unlikely to deliver meaningful change to address massive insecurity in the east, corruption scandals, and persistent poverty.

Climate change is fueling geopolitical competition in the Arctic. An independent Greenland could play an important role in years to come.

Moscow’s exit from the deal generated alarm in a number of populous lower-income countries dependent on Ukrainian grain.

Ukraine remains intent on wresting Crimea back from Russia, but doing so would be difficult, and the peninsula could become a bargaining chip in future diplomatic talks.

COVID-19 is contributing to a dramatic decline in the average lifespan of Americans. The drop-off is canceling out decades of public health gains and stretching the gap between the United States and …