So let's get involved in another pointless war, destabilizing the region even further, hurt America's reputation in the developing world and make the situation even worse? How is that going to save lives and restore stability to the region?
Also, why should we help the very terrorists and Islamists that we have spent the last 12 years fighting?
NGTM-1R already addressed this, but it bears repeating and elaboration: the use of chemical weapons is unacceptable (truthfully, the use of any CBRNE weapon is unacceptable). This is why there are international agreements like the
Chemical Weapons Convention. Notwithstanding the proliferation argument that NGTM-1R already quite pointedly made, I would like you to pull up a map of the Middle East and note which country is 100 km (60 miles) southwest of Damascus, Syria.
Damascus specifically and Syria generally are quite literally the LAST places in the world that we want to see people get away with using any form of CBRNE weapon in uncontrolled conflict. The potential for a powderkeg scenario is quite real.
Furthermore, 'invasion' like Iraq and Afghanistan is not only unnecessary, it's a bad tactical position and I think NATO generally has been well-reminded of that fact since 2001. I realize for some of you younger fellows that Afghanistan and Iraq are the most recent conflicts in memory and you default to them as examples of the way NATO will respond to conflict and have the [correct] perception that they have been politically [though not militarily] disastrous, but in point of fact the way those two conflicts were dealt with are significant outliers in NATO countries' policies. Most major nations now a part of NATO learned their lessons about ground-war invasions and hearts-and-minds in the late 50s and early 60s in various southeast Asian countries, and the majority of their 'hot war' responses between 1960 and 2000 were heavily influenced by that reality. The fact is that NATO nations have not militarily lost a conflict (Vietnam included) following the Second World War, but they all have developed political and social cultures that do not tolerate anything other than clear victory in a short period of time. It is the political and social reality
at home that has made military intervention in both Afghanistan and Iraq a failure, not military capability in the invaded nation. In this new reality, NATO nations would and should not be looking at full-scale invasions and occupation as they are no longer capable (both politically and logistically) of fielding a large enough occupying force.
NATO has several options that are much better than invasion and occupation to deal with the situation in Syria, but they are being blocked by Russia and, to a lesser extent, China. Given a free hand, NATO could successfully establish refugee safe-zones in parts of Syria, keeping both conflicting sides away, and eliminate the majority of the chemical weapons supply in relatively short order. The obstacle to that - and the inspiration for the thread title - is Russia.