[zman]

^I guess technically speaking India's initial move to send their military could be considered invasion from an overall Pakistan perspective, just like if some part of Bangladesh today were to seek independence from the rest of the country (say Sylhet for instance) and sought help from India and India reciprocated, it could be considered invasion.

But even then the current situation in Syria would be drastically different because of at least two reasons-
a) We Bangladeshis were one people united for one cause and that was to separate from West Pakistan and their oppression.
b) Geographically we're separated.

But neither of these hold true for Syria. Infact Syria has so many groups with each group having different demands that it's hard to keep track of who wants what. Heck even Al Qaeda has strong presence there in the form of Nusra Front who are also fighting against Bashar. Things are so messed up even the US or Israel doesn't want to topple Assad's regime, rather they just want to weaken his military so he can't attack others. Being bordered by Turkey, Lebanon, Iraq, Jordan and Israel, geographically Syria's location is even more sensitive and critical than Iraq's. So if US doesn't get it right, things will get much worse for sure and there's no guarantee things will get better even after hitting rock bottom. Question is - is it a risk worth taking?