The video begins with a river of blood pooling and dripping off a wooden table filled with stacks of American money, guns, knives and bullets.

It's ripped from a video game, as betrayed by the name of a video game designer with a U.S. company carved in the wood of the animated table.

The video is titled "A message to the Western Kafir [Disbelievers] from the Supporters of the Caliphate." It's narrated in English and subtitled in Arabic, and was posted on YouTube and other file-sharing sites.

It included Defense Department footage related to strikes on the Islamic State and news footage of ISIS attacks.