There is absolutely nothing worth America fighting and/or dying for in the Middle East.
Actually there is. As distasteful as it is to consider the oil, OPEC's estimate is that 81.5% of the world oil reserves are controlled by OPEC countries: Algeria, Indonesia, Iran, Iraq, Kuwait, Libya, Nigeria, Qatar, Saudi Arabia, the United Arab Emirates and Venezuela. If we go with OPEC's numbers, 65.5% of OPEC oil reserves are in the Middle East. Middle East oil producing countries that are not in OPEC include: Iran, Syria, Bahrain, Oman, and Yeman.
According to GEO ExPro (geoscience magazine): "With only 2% of the world’s producing wells, the Middle East’s output is over 30% of the world’s crude, highlighting its prolific fields. In addition, the Middle East holds 40% of the world’s conventional gas reserves."
How Much Oil in the Middle East?
And like it or not, much of the world runs on oil at this point in our history.
For that oil to fall into the hands of ISIS or some unsavory authority could literally hold much of the world hostage and could do irreparable harm to many countries. We are getting a little over 1 million barrels a day from the Middle East--we import a little over 10 million barrels daily in various forms from 80 some countries--and most of the M.E. oil is processed into petroleum products shipped back to the Middle East, so that in itself wouldn't cripple us, and would hurt but wouldn't be devastating to our economy.
But if our trading partners should be brought to their knees or should be coerced into not being our trading partners, that would be quite significant.
It is in the U.S. national interest for thugs and thieves not to overrun the Middle East. Whether that translates into justification for going to war against Syria, however, is above my pay grade. My gut feeling is no, let the free Arab countries deal with Syria, but. . .