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In 2011, after eight years of fighting, American troops returned home from Iraq. Their departure, combined with the fragile governments in the outskirts of Iraq, gave rise to fundamentalist groups that gained power. Fill in the blanks to complete the passage describing one such group.ISIS, the self-proclaimed Islamic State, first appeared in Iraq, where it quickly captured territory before moving west toward Syria to assist in the civil war taking place there. Its tactics defied conventional military engagement, and its use of social media to publicize its brutality and beheadings both shocked the world and inspired recruits to the organization.

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