Not that Raqqa is an any imminent danger of falling.

Via Business Insider:

As western countries ramp up strikes against ISIS’s de-facto capital of Raqqa, Syria, the terrorist group is looking to Libya as a potential back-up option
at which to base its operations, according to The New York Times.

While ISIS (also known as the Islamic State) has other affiliates throughout Africa and the Middle East that have pledged their allegiance to its leader, Abu Bakr al-Baghdadi, the group’s branch in Sirte is the only one that ISIS central leadership directly controls.

The Wall Street Journal reports that ISIS leaders in Libya have reportedly adopted a slogan that reflects Sirte’s heightened profile within the jihadist organization: “Sirte will be no less than Raqqa.”

The Sirte affiliate is also much closer to western Europe than ISIS’s territory in Syria and Iraq:

ISIS’s influence in Sirte has been growing over the past year, as it has evolved into what The Times describes as an “actively managed colony” of the central group.

The growth has been swift — the Libya affiliate has gone from 200 fighters to about 5,000 since ISIS announced its branch there, The Journal reports. (The Times reports that Western put that estimate at 2,000 fighters.)

And Libya might be an ideal location for ISIS’ fallback capital. The country lacks a functioning government and is rich in oil resources, which ISIS uses to finance its operations in Syria and Iraq, where it holds most of its territory.