Proliferation

Assad's track record indicates that he will likely continue challenging the chemical redline, and that additional strikes and other pressures may be necessary to deter him from doing so.

As the Trump administration decides whether to pursue a limited military response, it should use existing international legal mechanisms to pressure Damascus and Moscow right away.

The latest regime attack has once again shown that any effort to confront the Islamic State in Syria must also confront Assad.

A former National Security Council director outlines the three pillars on which Washington can build a policy of curbing Iran's more destabilizing regional ambitions.

Tehran seems eager to extend the range and capabilities of its antiship missiles, and just as eager to prevent the West from monitoring its progress toward that end, even at the risk of escalating naval tensions.

If this and other recent air defense developments bear fruit, Iran might soon become self-sufficient in such technology and could even begin offering it for export.

A former Treasury official outlines the various steps Washington can take to support its stated goal of curbing provocative Iranian behavior such as ballistic missile tests, military interventionism, illicit financing, and terror sponsorship.

Even while the Joint Comprehensive Plan of Action is in place, the Trump administration could bring significant pressure to bear on Iran. In this Policy Note, Institute fellows Katherine Bauer, Patrick Clawson, and Matthew Levitt look at the role of sanctions in restraining Iran's regional aggression and disrupting its global-terrorism

Regardless of how the details surrounding Sunday's launch shake out, it was an unhelpful move at a time when the Trump administration is determining its policy toward Iran's missile program and broader regional behavior.