Despite repeated pledges not to put "boots on the ground" in Syria, President Obama is inserting 50 U.S. special ops troops into that country, with more to follow. 

U.S. A-10 "warthog" attack planes have been moved into Incirlik Air Base in Turkey, close to Syria. 

Hillary Clinton, who has called for arming Syrian rebels to bring down Bashar Assad, is urging Obama to establish a no-fly zone inside Syria.

Citing Clinton and Gen. David Petraeus, John McCain is calling for a no-fly zone and a safe zone in Syria, to be policed by U.S. air power. 

"How many men, women and children," McCain asks, "are we willing to watch being slaughtered by the Russians and Bashar al-Assad?"

Yet, if we put U.S. forces onto sovereign Syrian territory, against the will and resistance of that government, that is an act of war.