Timber Sycamore was a covert program run by the United States Central Intelligence Agency (CIA) with the aim of removing Syrian President Bashar al-Assad from power, by supplying weapons, money and training to Syrian opposition groups that fought against government forces in the Syrian Civil War. It was supported primarily by the United Kingdom, Jordan and Saudi Arabia. A lot of these weapons ultimately ended up in the hands of extremist groups, most notably ISIS and the Al-Nusra Front.