Opposition to United States involvement in the Vietnam War An infamous photo of General Nguyễn Ngọc Loan shooting an alleged terrorist in handcuffs during the Tet Offensive also provoked public outcry. Another element of the American opposition to the war was the perception that U.S. intervention in Vietnam, which had been argued as acceptable because of the domino theory and the threat of communism, was not legally justifiable. Some Americans believed that the communist threat was used as a scapegoat to hide imperialistic intentions, and others argued that the American intervention in South Vietnam interfered with the self-determination of the country and felt that the war in Vietnam was
Non-intervention in the Spanish Civil War During the blockade of the Strait of Gibraltar by the Spanish Republican Navy one German Junkers was captured when it came down in Republican territory, and explained as 'merely a transport aircraft'. Its release would be required before Germany signed the Non-Intervention Pact. Portugal accepted the pact on 13 August, unless her border was threatened by the war. There was popular support in both countries for the plan, although whilst in the United Kingdom the socialist Labour Party was strongly in favour, the political left in France wanted to directly aid the Republicans. The Labour Party would reject non-intervention in