U.S. counterterrorism operations rely on authorizations established in 2001 and 2002. This report surveys the debate over the requirements for a new congressional authorization for the use of military force against terrorist groups and examines the current terrorist challenge, the purposes and key elements of such legislation, and options for Congress.

The first in a series exploring the elements of a national strategy for U.S. foreign policy, this book examines the most critical decisions likely to face the next president. The book covers global and regional issues and spotlights the long-term policy issues and organizational, financial, and diplomatic challenges that will confront senior U.S. officials in 2017 and beyond.

This report analyzes the U.S. and allied campaign against the al Qa’ida–linked terrorist group al Shabaab in Somalia, examines what steps have been most successful against the group, and identifies potential recommendations. It concludes that, while al Shaba'ab was weakened between 2011 and 2016, the group could resurge if urgent steps are not taken to address the political, economic, and governance challenges at the heart of the conflict.