Syrian President Bashar Assad told a Turkish newspaper that he regrets the shooting down of a Turkish jet. The incident happened two weeks ago after the jet briefly strayed into Syrian airspace.

In response to that incident, Turkey deployed anti-aircraft missiles on the Syrian border and asked for NATO support.

On Tuesday, top diplomats in France and German said Assad should step down.

Col. Douglas MacGregor (U.S. Army, ret.) offered analysis on Capital Insider.