Our lawyers have firsthand experience in national security programs and policies at the most senior levels of the US government. Mayer Brown's National Security practice advises clients on a wide spectrum of matters that involve sensitive national security issues. We have extensive experience working with the Departments of Defense (DOD), State, the Treasury, Justice (DOJ), Commerce, and Homeland Security (DHS); with federal law enforcement, intelligence, and military agencies such as the Federal Bureau of Investigation (FBI), Central Intelligence Agency (CIA), and National Security Agency (NSA); and with the increasing number of government entities that play a growing role in US national security today on issues ranging from energy to technology to trade.


  • Representing an individual criminal defendant in connection with presidential commutation related to US-Iran diplomatic negotiations.
  • Represented a contractor in litigation with respect to development and deployment of a new-generation, three-dimensional long-range expeditionary radar.
  • Advise a global petrochemical company on compliance with the US sanctions and export controls on Iran.
  • Represented a contractor in litigation with regarding design and development of a new long-range anti-ship missile.

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