Home1998 Treaties and Agreements ...Antigua and Barbuda (98-1125.1) – Defense Assistance Agreement hide Antigua and Barbuda (98-1125.1) – Defense Assistance Agreement TIAS Office of Treaty Affairs November 25, 1998 Defense: Assistance Agreement effected by Exchange of Notes at Bridgetown and St. John’s November 13 and 25, 1998; Entered into force November 25, 1998. Download attachment [269 KB] Tags Antigua and Barbuda Defense Treaties