Syria a national security threat to the U.S.?

[Harmony Blue]

AQ and their affiliates are the main targets on the so called War on Terror no? Assad and Hezbollah don't pose a direct threat to the national security of the United States, but AQ does. Turkey and Israel are vulnerable neighbors being next to Syria and yet these two countries being in close proximity to Syria are not beating the drums of war. Israel, has already shown they will act if necessary, and they have, and Turkey's has a large army that is able to mobilize near the Syrian border in a short time frame but they choose to not to lift a finger. Why? War isn't so simple, and more importantly Turkey realizes that terrorists pose the main threat to their national security not Assad's regime. When Israel was conducting military air strikes they were not not gleeful about it because the consequence is that they are directly injecting themselves into the Syrian civil war.