2009 G20 London summit London Summit and to co-ordinate their actions. The meeting was organised at the initiative of German Chancellor Angela Merkel. The leaders agreed that markets, financial institutions and the wide range of financial assets they create, and hedge funds should be subject to appropriate control. In addition, they called for effective sanctions against tax havens. They also agreed to impose sanctions against countries that intend to undermine their work. Finally, they advocated the doubling of funds available to the IMF. Finance ministers and central bankers of the G20 met in Horsham on 14 March 2009 to prepare for the London Summit.
2010 G20 Seoul summit among the leaders. In addition to President Cristina Fernández de Kirchner of Argentina, Prime Minister Julia Gillard of Australia, Chancellor Angela Merkel of Germany, and the president-elect of Brazil, Dilma Rousseff, accompanied her nation's delegation. This was the first G20 summit for Australia's Prime Minister Gillard, who had only been elected shortly before the Toronto summit. This was also the first opportunity for Prime Minister Lee Hsien Loong of Singapore to listen and to make his voice heard at the G20 leaders' meetings. Security for the G20 summit presented a unique array of problems. In addition to the security of