Top officials from Turkey, Saudi Arabia and Pakistan will gather in Istanbul on Monday for a first committee meeting under ​the joint defence accord that they signed this month, a ‌Turkish foreign ministry source said.

The “Mecca Joint Defence Agreement,” signed on August 7, brought together Sunni Muslim U.S. allies concerned by the Iran war and regional conflict that ​has led to Iranian missile fire on Gulf oil exporters.

It ​is intended to strengthen collective deterrence against any act ⁠of aggression and stipulates that an armed attack against any of ​the three would be regarded as an attack on all, similar to NATO’s ​Article 5 collective defence clause.

Foreign and defence ministers, as well as the chiefs of staff, of the three countries will attend the meeting in Istanbul, the ​ministry source said.

“International security issues will be on the agenda,” the ​source said, with discussions expected to cover enhancing defence capabilities, greater interoperability among their ‌armed ⁠forces and deepening cooperation in the defence industry, including joint production and development.