The U.N. charter never talks about going in and being a participant.

WSJ: U.N. Peacekeepers at War in the Congo

Syrian officials have demanded a U.N. response to the incident, which it said violates the U.N. charter and the 1974 agreement between Syria and Israel, negotiated after the Yom Kippur War.

CNN: Israeli defense minister suggests role in Syria airstrike

At a meeting of Arab League foreign ministers Saturday, Qatari Prime Minister Sheikh Hamad bin Jassim bin Jabor Al Thani said Annan's peace initiative should be placed under Chapter VII of the U.N. charter, Qatar's news agency reported Saturday.

CNN: Sources: Annan, Clinton to meet about Syria