There are different wars going on in the Middle East, all of them more or less going on at the same time. The purpose of the war in Syria is to partition it. The facade reason is that the “killer dictator” Assad must go. If Syria is partitioned into a Kurdish North East where the Euphrates flows, then water could be pumped to water-starved Israel by land and by sea. ISIS has been losing in Syria, although the final word has yet to be spoken. Whoever started ISIS is an enigma. Selling oil and financial transactions via SWIFT, (the Society for World-wide International Financial Transactions controlled by Federal Reserve Bank of New York), are not impeded by the US. Turkey is in Syria to prevent the creation of a Kurdish State, which would of course be a threat to its’ existence. Turkey initially supported ISIS because it felt it could occupy Syria’s Kurdish region but Erdogan switched after the coup d’état.
Turkey, despite being a NATO member, is being destabilized. South East Turkey, predominantly Kurdish, would be split to join the Kurdish areas of Syria, Iraq, and Iran into a greater Kurdistan which would then be friendly to Israel. Israel would then have an abundance of cheap water, oil, and gas. Turkey knows this. It is switching to Assad’s Syria, Iran, and Russia. A quiet alliance is forming between Turkey, Iran, and Pakistan. The “One Belt, One Road” policy of China will go through Pakistan, Iran, Turkey, via the Balkans into Europe. The US is also quietly organizing an Arab anti-Iran alliance that is friendly to Israel, composed of the Gulf States and Saudi Arabia.
The partitioning of Iraq was in the cards of the West: the Sunni West around Ramadi, the Shia south from Baghdad to Basra, and the Kurdish north east around Kirkuk; possibly Mosul as well.
Lebanon would also be destroyed and Israel would get the water of the Litani River. So far, Israel has not been successful.
The Yemeni-Saudi war is not going too well. The Houthis are holding their own against the Saudis. It is quite likely that the Yemeni war will lead to a Saudi demise.
For all the problems in the Middle East, the US and Israel are blaming Iran as the major culprit. Because of Iranian missile testing, (which is not a violation of Nuclear Agreement that US has signed), the US and Israel are threatening Iran.
If the US and Israel attack Iran, Iran will respond by closing the Persian Gulf. the price of oil would go sky high. There would be a shortage of oil world wide. Iran would hit Israel with missiles. If Israel goes nuclear, Iran would try to destroy the Dimona nuclear reactor in the Negev desert. If Israel persisted with nuclear attack, Pakistan would lend Iran several nuclear bombs to hit Israel in return and a world wide chain reaction would follow resulting in a total collapse of many regions of the world.
Let us hope this does not happen. Only time will tell.