Although the United States and the United Kingdom , the allies of the USSR against Nazi Germany during World War II , recognized the occupation of the Republic of Estonia by USSR at Yalta Conference in 1945 de facto , the governments of the rest of the western democracies did not recognize it de jure according to the Sumner Welles ' declaration of July 23 , 1940 Some of these countries recognized Estonian diplomats who still functioned in many countries in the name of their former governments . These consuls persisted in this anomalous situation until the ultimate restoration of Estonia 's independence in 1991
Yalta Conference
Yalta Conference
Estonian Soviet Socialist Republic