Bronisław Geremek Constitutional Committee from 1989 to 1991 and its European Law Committee from 2000 to 2001. After a coalition government was formed in October 1997 by the Solidarity Electoral Action (AWS) and the Freedom Union Geremek served as Minister of Foreign Affairs under Prime Minister Jerzy Buzek until 2000. In 1998 Poland chaired OSCE, and Bronisław Geremek served as Chairperson-in-Office. In March 1999 he signed the treaty under which Poland joined NATO. In the election to the European Parliament in June 2004 Geremek was elected as a candidate of the Freedom Union, winning the largest number of votes in Warsaw. In
Prime minister Bahrain's prime minister, Sheikh Khalifah bin Sulman Al Khalifah has been in the post since 1970, making him the longest serving non-elected prime minister. The post of prime minister may be encountered both in constitutional monarchies (such as Belgium, Denmark, Japan, Luxembourg, the Netherlands, Norway, Malaysia, Morocco, Spain, Sweden, Thailand, Canada, Australia, New Zealand, and the United Kingdom), and in parliamentary republics in which the head of state is an elected official (such as Finland, the Czech Republic, France, Greece, Hungary, India, Indonesia (1945-1959), Ireland, Pakistan, Portugal, Montenegro, Croatia, Bulgaria, Romania, Serbia and Turkey (1923-2018)). See also "First Minister", "Premier",