The 30th anniversary of one of the most consequential diplomatic achievements since the end of the Cold War was marked this month. On Nov. 21, 1995, at a secluded US airbase outside Dayton, Ohio, three leaders — Alija Izetbegovic, president of Bosnia and Herzegovina; Franjo Tudjman, president of Croatia; and Slobodan Milosevic, president of Serbia — initialed an agreement that brought an end to the bloody three-year Bosnian War. Bosnia and Herzegovina emerged from the breakup of Yugoslavia in the 1990s, which began a brutal interreligious and interethnic sectarian war in 1992.