Tensions between the Sinhalese majority and Tamil separatists in Sri Lanka erupted into war in 1983 that has continued for decades, resulting in tens of thousands of deaths. In 2002, the government and Tamil Tigers formalized a ceasefire with Norway brokering peace negotiations, but violence intensified in 2006. By 2009, the government had defeated the Tamil Tigers and announced their leader was killed, bringing major changes after over 25 years of conflict.