Welcome to The Adversarial. Every other week, we’ll provide you with expert analysis on America’s greatest challengers: China, Russia, Iran, North Korea, ...

Iranian cargo ships allegedly carrying chemicals to make missile propellent are setting sail from China to deliver the shipment to Tehran's army.

President Trump's territorial assertions sparked a round of rethinking by mapmakers and teachers, snark on social media and sarcasm by at least one other world leader.