The Quds Force is one of five branches of Iran's Islamic Revolutionary Guard Corps (IRGC). It specializes in unconventional warfare and military intelligence operations. U.S. Army's Iraq War General Stanley McChrystal describes the Quds Force as an organization analogous to a combination of the CIA and the Joint Special Operations Command (JSOC) in the United States. Responsible for extraterritorial operations, the Quds Force supports non-state actors in many countries, including Hezbollah, Hamas, Palestinian Islamic Jihad, the Houthi movement, and Shia militias in Iraq, Syria, and Afghanistan. According to Michael Wigginton et al., the Quds Force is "a classic example of state-sponsored terrorism."