FILE - In this Nov. 21, 1995 file photo, from left, Serbian President Slobodan Milosevic, Bosnian President Alija Izetbegovic, Croatian President Franjo Tudjman and U.S. Secretary of State Warren Christopher applaud after initialing a pact after an agreement was reached at Wright-Patterson Air Force Base after 21 days at the Proximity Peace Talks in Dayton, Ohio. Events on the ground in 1995 - Western airstrikes and Bosnian government offensives against Bosnian Serbs and intense diplomatic pressure after the massacre of Muslim civilians at Srebrenica - forced a breakthrough. With U.S. mediator Richard Holbrooke and representatives of Russia and the European Union, the warring parties and their regional backers met Nov. 1, 1995 at a U.S. Air Force Base in Dayton, Ohio and produced a draft agreement three weeks later. (AP Photo/Joe Marquette, File)