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.

Lebanon

What Is Hezbollah?

Military experience gained from fighting in Syria’s civil war and decades of clashes with Israel have strengthened the Iran-backed group, but politically, its clout among Lebanon’s populace may be waning.

Backgrounder by Kali Robinson July 2, 2024

Energy and Environment

Global Energy Tracker

As the effects of climate change mount, high-carbon energy sources continue to provide most of the world’s power. On average, 84 percent of tracker countries’ energy comes from high-carbon sources such as oil, whereas 16 percent comes from solar and other renewables. Low-carbon sources, however, are on the rise, particularly in developed countries.

Tracker by Benn Steil July 1, 2024 Greenberg Center for Geoeconomic Studies

Iran

The Islamic Republic’s Power Centers

Who calls the shots in Iran on economic policy, security, and domestic calls for reform? A look at the government’s organization chart indicates how complicated the answer is.

Article by CFR.org Editors June 26, 2024

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