In a notice Wednesday, the agency said it is conducting a study that looks at how its architecture could be expanded as part ...

A sudden Russian missile attack has killed at least one person and sparked fires across the Ukrainian capital of Kyiv. Follow the latest on the war in Ukraine here - and submit your questions on ...

The former head of the Missile Defense Agency who two decades ago oversaw the launch of the current system that provides limited national missile defense against North Korean and Iranian threats says ...