Why does the United States support Syrian opposition forces?

First, expel Russia from the Middle East. If Syria becomes pro-American, then Russia will be the most affected. Syria has Russia's only overseas base, a naval base and an air base. This is the basis for Russia to maintain its influence in the Middle East. If there is no military shock in the Middle East, then Russia's presence in Syria will decline, which will directly affect Russia's strategic layout in the Middle East.

Second, crack down on Shiite forces. After the fall of the Assad government, the United States can effectively crack down on Shia arc organizations. Shia Arc is a Shia group composed of Iran, Iraq and Syria, and the Shia in these three countries have great influence. Among them, Iran is the arc-shaped leader of Shiites, and it is also the only country where Shiites are the mainstream and completely ruled by Shiites. Jianghu people give them the nickname "anti-American fighter". Controlling Syria can form a Shia arc, effectively curb Iran's ideological output, and thus attack Iran's sphere of influence.

Third, shorten the oil circuit. If Syria is successfully controlled, the oil imported by the United States can directly enter the Mediterranean Sea from Syria. This not only greatly reduces transportation costs, but also reduces dependence on Persian Gulf routes. Now Iran threatens to blockade the Strait of Hormuz as soon as it is stimulated, and Iran can really do this by virtue of its superior geographical position.

Fourth, further control the Middle East. The United States basically controls the southeast, west and middle directions of the Middle East, except for the north, which is not effectively controlled. The Shia arc just mentioned is in the north. If Syria is incorporated by the United States, the Middle East will completely become the territory of the United States. Off topic, why does the United States want the Middle East? Apart from the trite reasons such as oil, dollar hegemony and arms sales, I want to tell you another reason here: Do you find that the position of the Middle East is very delicate, and it lies between the three biggest threats to the United States in the future? Do you think this is a coincidence or man-made?