Home2011 Treaties and Agreements ...Singapore (11-428) – Agreement for Research, Development, Testing and Evaluation Projects hide Singapore (11-428) – Agreement for Research, Development, Testing and Evaluation Projects TIAS Office of Treaty Affairs April 28, 2011 Defense: Research and Development Agreement signed at Washington April 22 and 28, 2011; entered into force April 28, 2011. With annexes. Download attachment [1 MB] Tags Defense Singapore Treaties