Home2005 Treaties and Agreements ...Portugal (05-119) – Amendment to Agreement of May 30, 1974 and June 30, 1975 Regarding Defense Assistance hide Portugal (05-119) – Amendment to Agreement of May 30, 1974 and June 30, 1975 Regarding Defense Assistance TIAS Office of Treaty Affairs January 19, 2005 Defense: Assistance Agreement amending the agreement of May 30, 1974 and June 30, 1975. Effected by exchange of notes at Lisbon December 23, 2004 and January 19, 2005; entered into force January 19, 2005. Download attachment [263 KB] Tags Defense Portugal Treaties