Tarja Halonen’s political career began in 1974 when she was appointed parliamentary secretary to the Prime Minister. She was elected to the Parliament for the first time in 1979, and after that she was repeatedly elected four times, until she assumed the office of the President of Finland. Halonen served in three cabinets as Minister of Social Affairs and Health, Minister of Justice and Minister of Foreign Affairs. Halonen has also played an active role at the Council of Europe, first as Deputy-Chair of the Finnish Delegation to the Parliamentary Assembly, 1991-1995 and later in the Ministerial Committee. In August 2010, she was appointed co-chair of the UN Secretary-General’s High-level Panel on Global Sustainability. Issues concerning social justice and promotion of equality have been central themes throughout Halonen's career, and in 2009 Forbes named her among the 100 Most Powerful Women in the world.