The "caliphate" may be in ruins, but that doesn't mean ISIS is gone forever.
Terror attacks are likely to increase in 2018, as the destruction of the Islamic State's physical stronghold in Iraq and Syria will strengthen its will to strike out abroad, experts say.
"ISIS will want to show that they are still in the fight, and their followers remain as fanatical as ever," said Lewis-Sage Passant, a former British Army intelligence officer and founder of travel security company HowSafeIsMyTrip. "The number of attacks globally will likely increase as the group switches focus from the war in the Middle East to international terrorism."
Adam Deen, executive director of counter-extremism think tank Quilliam, makes a similar argument.
"We're going to see without a doubt more attacks in the West," he told UK newspaper the Independent in October. Deen said ISIS is now more focused on revenge, and warned against the false sense of victory that many expressed after the death of Osama Bin Laden.