Protocol for the accession of the Portuguese Republic and the Kingdom of Spain to
the Treaty of Economic, Social and Cultural Collaboration and Collective Self-Defence,
signed at Brussels on 17 March 1948, as amended by the 'Protocol modifying and completing
the Brussels Treaty', signed at Paris on 23 October 1954
RatificationS=Signature without reservation or requirement of ratification R=Ratification, Acceptance,
Approval or Notification A=Accession Su=Succession NK=Not Known