ISIS Terror: Mapping the Militants' March of Destruction

Nearly two years ago, a relatively obscure Islamic militant group with loose ties to al Qaeda announced a reorganization and name change to reflect its goal of creating a caliphate in Iraq and Syria.

From that point in April 2013, it was known as ISIS, for Islamic State in Iraq and al-Sham. Taking advantage of power vacuums in war-torn Iraq and Syria, the group positioned itself as a legitimate force. But it would be many months before its march of destruction would gain worldwide notoriety.

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