North Korea’s nuclear detonation over the weekend spurred the deployment of the rest of the Terminal High Altitude Area Defense, which is designed to stop missiles from the North.
Days after another missile launch from North Korea, the United States tested its intercepting capabilities off the coast of Hawaii.
In the face of stiff opposition, Dr. Keyworth was a strong advocate of the antimissile plan known as Star Wars.
The United States uses two different categories of missile defense to counter North Korea. Here’s how they work and — sometimes — how they don’t.
In a letter to the United Nations Security Council, the four Western allies called Iran’s satellite launch last week “threatening and provocative.”