It is a civil war, tribal war, religious war, and proxy war with local, regional, and global implications.

The specific and larger implications of the war in Yemen will be our topic for the full hour with our guest Katherine Zimmerman.

Katherine Zimmerman is a research fellow at the American Enterprise Institute (AEI) and the research manager for AEI’s Critical Threats Project. As AEI’s senior analyst studying terrorist groups, she focuses on the global al Qaeda network and covers the Salafi-jihadi movement and related trends in the Middle East and Africa. She also specializes in al Qaeda in the Arabian Peninsula and Yemen, al Shabaab in Somalia, and al Qaeda in the Sahel.

Ms. Zimmerman has testified before Congress about the threats to US national security interests emanating from al Qaeda and its network. She has also briefed members of Congress, their staff, and US military, diplomatic, and intelligence community personnel. Her analyses have been widely published, including in CNN.com, Foreign Affairs, FoxNews.com, The Hill, The Huffington Post, The Wall Street Journal, and The Washington Post. She is a term member with the Council on Foreign Relations and a member of the ?RESOLVE Network Research Advisory Council.