Latvia states of Northern and Eastern Europe were divided into German and Soviet "spheres of influence". In the north, Latvia, Finland and Estonia were assigned to the Soviet sphere. A week later, on 1 September 1939, Germany and on 17 September, the Soviet Union invaded Poland. After the conclusion of the Molotov-Ribbentrop Pact, most of the Baltic Germans left Latvia by agreement between Ulmanis' government and Nazi Germany under the Heim ins Reich programme. In total 50,000 Baltic Germans left by the deadline of December 1939, with 1,600 remaining to conclude business and 13,000 choosing to remain in Latvia. Most of
Ministerial Conference on the Protection of Forests in Europe implementation of the resolutions. The number of signatories has increased over the years, and now account for 46 European countries, as well as the European Union: Albania, Andorra, Austria, Belarus, Belgium, Bosnia and Herzegovina, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Georgia, Germany, Greece, Holy See, Hungary, Iceland, Ireland, Italy, Latvia, Liechtenstein, Lithuania, Luxembourg, Malta, Moldova, Monaco, Montenegro, Netherlands, Norway, Poland, Portugal, the Republic of Macedonia, Romania, Russia, Serbia, Slovak Republic, Slovenia, Spain, Sweden, Switzerland, Turkey, Ukraine and the United Kingdom. Non-European countries and different kind of international organizations take also part in the FOREST EUROPE process as