KEY POINTS
  • Russian President Vladimir Putin unveiled an arsenal of nuclear weapons that will significantly boost the Kremlin's military capabilities.
  • The U.S. defense community wasn't surprised by Putin's announcements, but there are concerns that the new weapons render NATO's U.S.-led missile defense system useless.
  • The Pentagon, meanwhile, urged calm over Putin's statements.

Russia just upped the ante for the missile defense world by unveiling a new arsenal of nuclear weapons, although it did not come as a surprise to the United States – and the Pentagon urged calm over the developments.

"We are not surprised by these statements, and the American people should rest assured that we are fully prepared," chief Pentagon spokeswoman Dana White told reporters Thursday.