Syria has reportedly decided to do so.
Syria has reportedly decided to join the Makkah Joint Defense Agreement between Saudi Arabia, Turkey and Pakistan, according to the Associated Press (AP), citing two Syrian officials.
A Syrian diplomatic source separately told SANA that military cooperation with Saudi Arabia currently covers training, sharing expertise and consultations, with coordination visits expected to begin in December. The source said that this cooperation could eventually lead to a mutual defense agreement or to Syria joining the Makkah alliance, depending on mutual interests.