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 Toronto summit Stephen Harper announced that the theme would be "recovery and new beginnings," referring to an anticipated economic stimulus from the impact of the ongoing world recession. Harper initially proposed to hold the summit in Huntsville, Ontario, where the 36th G8 summit was scheduled immediately prior. Organizers later deemed the town insufficient to provide hospitality for the large number of G20 delegates and journalists, favouring Toronto as the host location. Organizers formed an Integrated Security Unit, consisting of police officers from several regional departments, to provide security during the summit in Downtown Toronto. The event was part of the largest and