“…What is the best strategy for a state to win international society over to its side? Although there is a growing literature on "public diplomacy" (Entman, 2008;Gregory, 2008;Leonard, 2002;Lord, 2006;Manheim 1994;Melissen, 2005;Mor, 2007;Sheafer & Gabay, 2009;Sheafer & Shenhav, 2009;Shenhav, Sneafer, & Gabay, 2010;Sheafer, Ben-Nun Bloom, Shenhav, & Segev, 2013, Sheafer, Shehave,Takens, & van Atteveldt, 2014, we still do not know what types of diplomatic statements are the most effective to persuade a foreign public when there are competing countries and messages. This contrasts with the rich literature in political communication on domestic political competition, including negative electoral campaigns (Ansolabehere & Iyengar, 1995;Ansolabehere, Iyengar, & Simon, 1999;Ansolabehere, Iyengar, Simon, & Valentino, 1994;Brooks, 2006;Brooks & Geer, 2007;De Nooy & Kleinnijenhuis, 2013;Fridkin & Kenney, 2004;Jasperson & Fan, 2002;Lau, Sigelman, Heldman, & Babbitt, 1999;Lau, Sigelman, & Rovner, 2007).…”