The Patriot air-defense system is lauded by militaries around the world for its ability to shoot down deadly drones and missiles. Now, a new version of a European weapon is set to challenge its dominance and test whether the region can wean itself off U.

President Trump set a 50 day deadline for a cease fire in Ukraine, but Russia is still stepping up its attacks across the country. Reporter Alex Hogan says American air defense systems are now on the way to Ukraine's biggest cities.