Washington: Syria will also be on the agenda at this weekend's Nato summit in Chicago, according to US administration officials.
Although the alliance has repeatedly said it will not get involved in Syria, Turkey has indicated that it may invoke Article IV of the Nato Charter, which would open the door to consultations on threats to Turkish security and consideration of mutual defence provisions of Article V of the charter.
Last month, after Syrian forces shot dead four Syrians who had crossed into Turkey, Turkish Prime Minister Recep Tayyip Erdogan said, "Nato has responsibilities to protect the Turkish border".
