Related resources
Explainer
North Korea Basics
Nuclear warheads, long-range missiles, and a combative leader. What are the options?
Activist Resource
Understanding China’s Foreign and Defense Policies
Chinese primary sources including speeches by Xi Jinping shed light on China's defense and foreign polices as they relate to the US.
Explainer
How Nuclear Weapons Work
At the center of every atom is a nucleus. Breaking that nucleus apart—or combining two nuclei together—can release large amounts of energy.
Feature
Satellite Database
In-depth details on the 7,560 satellites currently orbiting Earth, including their country of origin, purpose, and other operational details.