Erdogan: “NATO has a responsibility to protect Turkish borders,”

"... “NATO has a responsibility to protect Turkish borders,” said Erdoğan, signaling that Turkey may officially ask NATO members to apply Article 5 of the NATO Charter, which says that an attack on any member shall be considered to be an attack on all, if the situation in Syria becomes a serious enough threat to Turkish national security.The article was invoked by the US for the first time in October 2001, when NATO determined that the terrorist attacks on the twin towers of the World Trade Center in New York City were indeed eligible under the terms of the charter.
Erdoğan stated that Turkey would closely follow the developments in Syria. “Turkey’s sensitivities are clear on the Syrian issue. We will follow the Syrian situation closely at the United Nations,” he said..."