Home2014 Treaties and Agreements ...Greece (14-625.1) – Agreements Extending Defense Cooperation Agreement of July 8, 1990 hide Greece (14-625.1) – Agreements Extending Defense Cooperation Agreement of July 8, 1990 TIAS Office of Treaty Affairs June 25, 2014 Defense: Cooperation Agreements extending the agreement of July 8, 1990. Effected by exchange of notes at Athens May 19 and June 25, 2014; entered into force June 25, 2014. Effected by exchange of notes at Athens June 12 and September 9, 2015; entered into force September 9, 2015. Download attachment [458 KB] Tags Defense Greece Treaties