Iran has reportedly received an invitation to join the Mecca Joint Defense Agreement, a military pact currently involving Saudi Arabia, Pakistan and Turkey. The alliance treats an armed attack on one member as an attack on all, raising questions about the future of Middle East security. Iran’s parliamentary news agency chief says Tehran is considering the invitation, but Iranian officials have not officially confirmed it. Saudi Arabia, Pakistan and Turkey have also made no public confirmation. If Iran joins, the move could reshape regional alliances, transform Saudi-Iran relations and create a powerful new Islamic security bloc with major geopolitical consequences across the Middle East.