Paul Lettow

Former Adjunct Senior Fellow.

Former senior director for strategic planning and institutional reform, National Security Council staff. Author of Ronald Reagan and His Quest to Abolish Nuclear Weapons (Random House, 2005) and the recent Council Special Report Strengthening the Nuclear Nonproliferation Regime.

EXPERTISE:

U.S. national security policy; nuclear nonproliferation; diplomatic history; structure and process of U.S. national security policymaking.

Top Stories on CFR

Conflict Prevention

U.S. foreign policy experts rank the thirty global conflicts that could most significantly affect the United States in 2025.

United States

Former U.S. President Jimmy Carter, who passed away this week at the age of one-hundred, leaves behind a rich and at times confounding foreign policy legacy that eludes any simplistic narrative.

Ukraine

While Ukraine’s acceptance into the North Atlantic Treaty Organization (NATO) appears unattainable, armed neutrality may be the country’s next best option to protect against future Russian aggression.