YEREVAN - French President Nicolas Sarkozy, on a brief trip to the Caucasus, urged Turkey on Thursday to recognize the 1915 massacre of Armenians as genocide, threatening to pass a law in France that would make denying this a crime.Visiting a genocide memorial and museum in Yerevan, Armenia, with Armenian President Serzh Sarksyan, Sarkozy challenged Turkey -- which is seeking membership of the European Union -- to face up to its past."The Armenian genocide is a historical reality. Collective denial is even worse than individual denial," Sarkozy told reporters."Turkey, which is a great country, would honor itself to revisit its history like other great countries in the world have done."