Let me help you finish your whole point.
As for Kurds, Saudi Arabia and UAE will help Kurds in Syria. They already sent Troops and Advisers there. Russian forces in Syria will restrain Hezbollah in Syria, Saudi also agreed to help ending Afghan conflict. They will host Afghan peace talk. We will soon not only bring fighting ISIS heroes back home, but also troops in Afghan back home. The point is U.S. is not world police. The people and countries in those troubled places have to take main responsibility to solve their problems with limited assistance/support from U.S.
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