Analysis of information sources in references of the Wikipedia article "Northrop Grumman" in Vietnamese language version.
Having lost the battle with Raytheon, Northrop Grumman agreed in late 1997 to be acquired by Lockheed Martin for $11.6 billion. The deal was abandoned by Lockheed in July 1998 when it became apparent that the Department of Justice and the Department of Defense were determined to prevent the merger, which would have given Lockheed a monopolistic position in key defense technologies.
