DOD Conducts Ground-launched Cruise Missile Test

What we know about North Korea's failed missile launch

Fresh missile launch from N.K., days after last one

The US Missile Defence Agency launched two ground-based test missile interceptors against an ICBM-class target in California.

What we know so far about North Korea missile failed launch

How Missile Defense Works

Trump unveils new missile defense strategy as the U.S. withdraws from a Cold War-era nuclear treaty

Missile Defense and Technology