2009 G20 London summit a force for good in the medium term." Leaders of the member countries began to prepare for the London Summit months before the effective date, notably with two official meetings dedicated to that preparation, one held in Berlin, Germany, on 22 February 2009 for European leaders, and another in Horsham, Sussex, United Kingdom, on 14 March 2009 for Finance Ministers. Leaders of the four European Union member countries of the G20, the United Kingdom, Germany, France and Italy along with the two largest European non-members, Spain and the Netherlands, met in Berlin on 22 February 2009 to prepare for the
G20 its nature and character." In 2018, Argentina hosted the 2018 Summit. The 2019 Summit will be in Japan 2020 in Saudi Arabiaand 2022 in India. To decide which member nation gets to chair the G20 leaders' meeting for a given year, all 19 sovereign nations are assigned to one of five different groupings, with each group having four nations, except one having three. This system has been in place since 2010, when South Korea, which is in Group 5, held the G20 chair. The table below lists the nations' groupings: The G20 operates without a permanent secretariat or staff. The