The programme of Mart Laar's government was signed by Pro Patria Union, the Reform Party, the Moderates, and the People's Party. The latter two merged soon after, so Mart Laar's second government is widely known as "Kolmikliit", or the Tripartite coalition. Notwithstanding the different political orientation of the ruling parties, the coalition stayed united until Laar resigned in December 2001, after the Reform Party had broken up the same coalition in Tallinn municipality, making opposition leader Edgar Savisaar the new mayor of Tallinn. After the resignation of Laar, the Reform Party and Estonian Centre Party formed a coalition that lasted until the next parliamentary election, in 2003.