The Math of Long-Term Strategic Threats to the US

Paramilitary police officers stand in front of the Great Hall of the People during the opening of the National People's Congress in Beijing on Mar. 5, 2017. Fred Dufour/AFP/Getty Images

Commentary

As the future comes roaring toward us, there’s a common line of reasoning about the long-term strategic threats facing the United States. The term used is “four plus one.”