United States--History--Cold War 2 Aeronautics, Commercial--Law and legislation--United States 1 Airports--Pennsylvania 1 Ambassadors--United States 1 Ambassadors’ spouses 1 Ancient Arabic Order of the Nobles of the Mystic Shrine for North America 1 Armories--Pennsylvania 1 more ... Democratic Party (U.S.) 1 Diplomatic and consular service, American 1 Foreign Relations--United States--Europe--1935-1944 1 Governments in exile 1 Hitler, Adolf, -- 1889-1945 -- Assassination attempts 1 Katyn Massacre, Katyn', Russia, 1940 1 Nazi propaganda--Poland 1 Poland--Foreign relations--United States--Sources 1 United States Army 1 United States Government--House Committee on Un-American Activities 1 United States Government--House Foreign Affairs Committee 1 United States--Foreign relations--Poland--Sources 1 United States--Foreign relations--Spain--Sources 1 United States--History--World War, 1939-1945 1 United States--Relations--Soviet Union 1 World War I. 1 World War II 1 World War II, 1939-1945--Diplomatic Service 1 World War, 1939-1945--Causes 1 Yalta Conference (1945) 1 less ...