February 17, 1940
The Ambassador in the Soviet Union (Steinhardt) to the Secretary of State
Ambassador Steinhardt on rumors that the Soviet Union is planning to take control of Latvia and Estonia.
June 07, 1940
The Minister in Latvia (Wiley) to the Secretary of State
Lithuanian, Latvian, and Estonian officials all anticipate that the Soviet Union will take measure to control the Baltic states.
June 16, 1940
The Chargé in Estonia (Leonard) to the Secretary of State
The Soviet Union has demanded that Estonia and Latvia allow Soviet troops to enter both countries.
July 23, 1940
Welles Declaration, Department of State Press Release, 'Statement by the Acting Secretary of State, the Honorable Sumner Welles'
Later referred to as the "Welles Declaration," this statement by acting Secretary of State Sumner Welles condemned the 1940 Soviet occupation of the Baltic states and set United States policy of refusing to recognize the new Soviet governments of Estonia, Latvia, and Lithuania.