A neutrality zone some 300 miles in breadth is to be patrolled by the United States Navy. Germany notifies the United States that merchant vessels must submit to visit and search. Neutrality Act of 1939 becomes law. President declares area around British Isles a combat zone. Russia denounces 1932 Non-Aggression Pact with Finland.
Russian forces invade Finland.
United States protests British seizure of mail en route to Europe.