List the interests of Russia and China in Syria and analyze why Russia.

Let's start with Russia. At present, Russia's only military base in the Middle East is in Syria. Syria's neighboring countries are all within the sphere of influence of the United States, except Iran, such as Iraq and Afghanistan, which all have American troops. Israel is also a die-hard ally of the United States, so Russia wants to fight against the United States in the Middle East, and only Syria can play this card. If the United States supports the Syrian opposition to come to power, it is estimated that Russia's influence in the Middle East will be greatly reduced, and there will not be many chips with the United States to deal with the eastern Ukraine issue. After all, the international community has been focusing on the Syrian issue, and the benefits of Russia going to eastern Ukraine are very great. From the current point of view, the United States only assists equipment and military advisers on the issue of eastern Ukraine, and has not directly participated. For China, China certainly hopes that the United States and Russia will fight in the Middle East. At present, it is definitely supporting Russia. Therefore, China supports some humanitarian assistance and military assistance from time to time. On the Syrian issue, the Syrian government has made it clear that China will participate in post-war reconstruction. This is a huge cake. It can be said that there are many benefits for China. On the one hand, it will support Russia, on the other hand, it will get large-scale projects.