israeli and british military advisers helping the free syrian terrorist army in syria

I managed to find evidence of Israel and British military advisers in Syria. This material is more than 4 month old. Now there are rumor of US military presence in Syria, specifically in the north. I have doubts that the FSA can blow up armor so efficiently considering the plethora of videos that shows how clumsy and ill trained they are.

http://www.liveleak.com/view?i=c37_1341996872