ANKARA, Turkey — Saudi Arabia, Turkey and Pakistan have signed a defense agreement on Friday, Pakistan’s Foreign Ministry, deepening cooperation between the three regional powers at a time of growing security concerns. The agreement was signed during a meeting between Saudi Crown Prince Mohammed bin Salman, Turkish President Recep Tayyip Erdogan and Pakistan’s Prime Minister Shehbaz Sharif in Saudi Arabia. “The Agreement is intended to strengthen collective deterrence against any act of aggression, and stipulates that any armed attack against any one of the three States shall be regarded as an attack against them all. It further provides for the enhancement of all aspects of defence cooperation among the three States,” the ministry said in a statement. There were no immediate details of the agreement, which brings oil-rich Saudi Arabia together with nuclear power Pakistan as well as Turkey, which has NATO’s second-largest army and a rapidly growing defense industry. Turkey’s Haberturk television said it is likely to allow joint military exercises and training, technology tr