The Wall Street Journal reports: Even with the U.S. launching airstrikes on an Islamic State stronghold in Libya, the battle to uproot the extremists from the oil-rich North African nation is expected to be long and difficult.

The U.S. began the attacks on Monday and struck again on Tuesday in support of a ground offensive to retake Sirte, a strategic port on the Mediterranean coast. But Islamic State is also entrenched in other pockets across the country, including parts of the eastern city of Benghazi, Libya’s second largest; Derna, another eastern city; and the western town of Sabratha, near the Tunisian border.

The competing militias and centers of power that have stoked Libya’s civil war complicate the fight against Islamic State. The chaos has given the group an opening to gain its first territorial foothold outside its self-declared caliphate in Iraq and Syria.

Libya has two rival governments — one that is internationally recognized in the capital, Tripoli, and another based in the east. The competing governments so far have refused to work together to defeat Islamic State or toward national unity, despite international efforts. [Continue reading…]