Iran's embattled opposition leaders promised to press on with their campaign against the country's rulers, saying the use of force to crush the post-election protests will not silence their demands for democratic change. The powerful statement of defiance Friday from opposition leader Mir Hossein Mousavi and former President Mohammad Khatami also sent a message to their supporters that the protest campaign triggered by the disputed June 12 presidential election still had energy and leadership though street demonstrations fizzled out months ago. A bloody crackdown and a mass trial of pro-reform figures that has so far produced three death sentences quelled the weeks of street protests that followed the vote. One of Iran's most prominent pro-reform figures who has been part of the mass trial, Saeed Hajjarian, has been convicted of inciting post-election unrest and sentenced to a five-year suspended jail term, reformist Web sites said Saturday. Hajjarian was released on bail earlier this month after more than three months in prison.