Weeks after the U.S. pulled the plug on a Poland-based missile defense system, Vice President Joe Biden traveled to Warsaw on Wednesday to assuage angry officials and emerged with an agreement that Poland will get an upgraded element of a missile defense.

Biden said the new system of SM-3 missile interceptors would be more modern and more effective at protecting Europe.

Polish Prime Minister Donald Tusk said after an hourlong meeting with Biden that Poland considered a plan to place the interceptors in his country "a very interesting idea. We are ready to participate in this project."