We join the Libyan people in gratefulness as we hear of Col. Gaddafi’s defeat. The fall of a tyrant and sponsor of terrorism is a great day for freedom-loving people around the world. But the path to democracy in Libya is not complete, and we must make wise choices to ensure that our national interests are protected.

First, the White House needs to avoid triumphalism. Gaddafi may be gone, but the fighting may not be complete. As we�...