The $750 million-plus Homeland Defense Radar-Hawaii is planned to be operational in 2023.
The Army has been testing Israeli-made systems such as Trophy for the M1 tank and Iron Fist for the Bradley.
The Army has already gambled big on the future once -- and lost.
Russia is considering giving -- not selling -- S-300 air defense missiles to Syria.
The THAAD and Patriot missile systems were able to track a target and exchange messages through tactical data links.
After decades of relative calm across the Pacific region, Wake Island is taking on a renewed strategic importance.
How ready is the United States to defend against high-tech weapons from Russia and China?
"If you can't see it, you can't shoot it."
Hawaii authorities won't sounds sirens warning of a nuclear missile attack during a monthly test this week.
Juniper Cobra 18, which is scheduled to take place March 4-15, has been in the planning stages January 2016.