Islamic State fighters shocked the world when they steamrolled the Iraqi army in June. By the end of the month, the Sunni extremists announced the a new “caliphate” in the parts of Iraq and Syria under their control.

Two months later, the Pentagon launched an air war against Islamic State in Iraq and, later, Syria. Washington has also boosted military aid to Baghdad, Kurdish authorities and select Syrian rebel groups to help counter the brutal militants.

But now American officials are also worried about Islamic State—or at least terrorists linked to the group—taking advantage of instability in Libya. The Pentagon is closely watching the North African state in case it turns into the next front in the war.

Islamic State has established training camps and a supply network in eastern Libya, U.S. Army general David Rodriguez told reporters on Dec. 3. But “as far as a huge command-and-control network, I’ve not seen that yet,” Rodriguez added.

While far from the group’s traditional stomping grounds Iraq and Syria, Libya offers a almost perfect space for the organization. The North African country has been in a near-constant state of crisis since rebels overthrew long-time dictator Muammar Gaddafi with NATO’s help in 2011.

Unfortunately, the insurgent groups never disarmed or demobilized after they ousted Gaddafi. The militias still roam the country, fighting with terrorists, the central government and amongst themselves—with civilians often caught in the crossfire.