Neutrality Acts of the 1930s
passed by Congress in the 1930s in response to turmoil in Europe and Asia

The Neutrality Acts were a series of acts passed by the US Congress in 1935, 1936, 1937, and 1939 in response to the growing threats and wars that led to World War II. They were spurred by the growth in isolationism and non-interventionism in the US following the US joining World War I, and they sought to ensure that the US would not become entangled again in foreign conflicts.
The legacy of the Neutrality Acts is widely regarded as having been generally negative since they made no distinction between aggressor and victim, treating both equally as belligerents, and limited the US government's ability to aid Britain and France against Nazi Germany. The Acts were largely repealed in 1941, in the face of the Lend-Lease Act.
Background
The Nye Committee hearings between 1934 and 1936 and several best-selling books of the time, like H. C. Engelbrecht's The Merchants of Death (1934), supported the conviction of many Americans that the US entry into World War I had been orchestrated by bankers and the arms industry for profit reasons. That strengthened the position of isolationists and non-interventionists in the country.
Powerful forces in the US Congress pushing for non-interventionism and strong Neutrality Acts were Republican Senators William Borah, Arthur Vandenberg, Gerald Nye, and Robert M. La Follette Jr., but Congressional support for non-interventionism was not limited to the Republican Party. The Ludlow Amendment, requiring a public referendum before any declaration of war except in cases of defense against direct attack, was introduced several times without success between 1935 and 1940 by Democratic Representative Louis Ludlow.
Democratic President Franklin D. Roosevelt and especially Secretary of State Cordell Hull were critical of the Neutrality Acts for fear that they would restrict the administration's options to support friendly nations. Even though both the House and Senate had large Democratic majorities throughout these years, there was enough support for the Neutrality Acts among Democrats (especially Southerners) to ensure their passage. Although congressional support was insufficient to override a presidential veto, Roosevelt felt he could not afford to snub the South and anger public opinion, especially while he was facing re-election in 1936 and needed congressional co-operation on domestic issues.
The public source identifies “Neutrality Acts of the 1930s” as passed by Congress in the 1930s in response to turmoil in Europe and Asia. This brief keeps that definition visible, then builds a research path around Neutrality, Acts and 1930s.
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