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.
2009 G20 Pittsburgh summit of Pittsburgh to allow demonstrations around the G20 Summit. Participants in the protests surrounding the summit included peace, environmental, labor and social justice organizations. The first of the alternate events was a Peoples' Summit, involving an all-day session of speakers, panels and workshops on September 19, the Saturday before the G20 Summit, drawing about 500 participants, and continuing on Monday and Tuesday evenings, each drawing between 100 and 200. The Peoples' Summit included outright opponents of the G20 (such as radical historian Howard Zinn, who addressed the gathering via special video) as well as some who hoped to influence it