Any ground forces military action against Syria is military aggression against the Islamic Republic of Iran.
Syria serves as a convenient land bridge for black market armaments, land mass with IRG chain of command oversight, refuge for HizbAllah, and source of dabbling about with nuclear weapons acquisition.
Seeking to “remove Assad” is like using a trowel to take down an oak tree. Iran is an oak.
We will not be successful in this venture and Trump may end up with an undesirable twin meme of his own:
LBJ had his Vietnam. Trump had his Syria.