Well here is my take about Russia control over Europe over natural gas. It seems Qutar wanted the overthrow of Syrian President Bashar al-Assad because of his refusing building a gas pipeline through Syria. Russia is fighting to stop the pipeline going through Syria and Iranian building their own pipeline to Europe. Syria is politically easier to sell to Russians their involvement in Syria. Iran is more problematic due to their much friendlier relationship with Russia. Getting US to tear up the broad agreement with Iran and Iran close ties with Russia would make it a lot harder politically to sell their natural gas to Europe. US under President Trump would pressure Europe not to buy Iranian natural gas. Because of their insistence to continue research into building nuclear power and weapons. At least selling the idea. Putin's Russia would only have to focus most of their efforts in Syria. Top it off President Trump would stop US involvement. Win win for Putin's Russia and would restore Russia influence in the Arab world much to the dismay of Qutar and US. This is my take on the matter we need to end World dependence again foreign resources including natural gas. We need to do this before the US gets drawn into a much larger war.