Candidates opened their campaigns Tuesday for Indonesia's presidential election, which is shaping up as a three-way race between a former special forces general who's lost twice before and two former governors. The three presidential hopefuls have vowed a peaceful race on Monday as concerns rose their rivalry may sharpen religious and ethnic divides in the world's most populous Muslim-majority country. Ganjar Pranowo, the governing party’s presidential candidate and former governor of Central Java, started his first day of the 75-day campaign season in Indonesia’s easternmost city of Merauke in South Papua province, while his running mate, top security minister Mohammad Mahfud, began his tour from the westernmost city of Sabang in Aceh province.