Will any country join the Mecca Agreement by December 31, 2026?

The Makkah Joint Defence Agreement (also known as the Makkah Accord or Mecca Joint Defense Agreement) is a collective-defense agreement signed by Saudi Arabia, Türkiye, and Pakistan on August 7, 2026, under which an armed attack against any one of the three countries is regarded as an attack against them all. The agreement has subsequently been described by its signatories as open to additional countries. This market will resolve to “Yes” if any country other than Saudi Arabia, Türkiye, or Pakistan formally joins the Makkah Joint Defence Agreement by the specified date, 11:59 PM ET. Otherwise, this market will resolve to “No”. A country will be considered to have formally joined if either of the following occurs: the country signs the Agreement or a formal accession protocol or instrument that, by its terms or official characterization, makes it a party, member, or signatory; or the country and the Agreement’s existing parties officially announce, jointly or separately, that the country has become a party, member, or signatory. Statements of intent, applications, invitations to join, negotiations, parliamentary authorization, approval in principle, or general defense cooperatio