The first article of the Mecca Joint Defence Agreement stipulates that member parties shall use all necessary means to eliminate threats to each other's territorial integrity and sovereignty

From the articleOfficials From Mecca Pact Countries to Meet Iranian Officials in Tehran on MondayAlso in Top officials from Mecca pact countries to meet Iranian officials in Tehran, two sources say, Officials from Mecca pact countries to meet Iranian officials in Tehran on Monday, Officials from Mecca pact countries to meet Iranian officials in Tehran on Monday | Reuters, Mecca Pact leaders to meet Iran in Tehran