Syria, like the U.S., is a sovereign nation. Sovereignty must be respected. The U.S., unlike Russia, has not been invited to Syria to fight terrorism. Unless Syria formally invites us to their country, we should respect international law and stay home.
The U.S. should NOT engage in "regime change" in Syria or in any other sovereign country in the Middle East (M.E.). It is not in our economic, trade, or humanitarian interests.
Our allies (Israel, Saudi Arabia, & Turkey) want to destroy & break-up M.E. countries for their gain, but this only increases terrorism for everyone.
Our "allies" are creating an existential threat to the U.S. and to all Americans because they keep killing Muslim civilians.
To end terrorism, the U.S. must stop bombing and killing Muslims in their home countries.