Qatar–Turkey pipeline

The Qatar–Turkey pipeline was a proposal to build a natural gas pipeline from the Iranian–Qatari South Pars/North Dome Gas-Condensate field towards Turkey, where it could connect with the Nabucco pipeline to supply European customers as well as Turkey. One route to Turkey was via Saudi Arabia, Jordan, and Syria, and another was through Saudi Arabia, Kuwait and Iraq. Agence France-Presse claimed Syria's rationale for rejecting the Qatar proposal was "to protect the interests of [its] Russian ally, which is Europe's top supplier of natural gas."

Syrian Civil War
Political scientists and journalists have postulated that the Syrian Civil War was an undercover CIA operation due to Syria's rejection of the pipeline proposal and turning to an Iran-Iraq-Syria pipeline instead. It has also been proposed that Russia's intervention in Syria is motivated by the Iran-iraq-Syria pipeline and stopping the rival Qatar-Turkey pipeline.