Home2015 Treaties and Agreements ...Spain (15-925.1) – Defense Agreement on Research, Development, Test, Evaluation and Prototyping Projects hide Spain (15-925.1) – Defense Agreement on Research, Development, Test, Evaluation and Prototyping Projects TIAS Office of Treaty Affairs September 25, 2015 Defense: Research and Development Agreement signed at Washington and Madrid August 21 and September 25, 2015; entered into force September 25, 2015. With annexes. Download attachment [2 MB] Tags Defense Spain Treaties