| U.S. congressional opposition to American involvement in wars and interventions |
|---|
 |
| 1812 North America |
| House Federalists’ Address |
| 1847 Mexican–American War |
| Spot Resolutions |
| 1917 World War I |
| Filibuster of the Armed Ship Bill |
| 1935–1939 |
| Neutrality Acts |
| 1935–1940 |
| Ludlow Amendment |
| 1970 Vietnam |
| McGovern–Hatfield Amendment |
| 1970 Southeast Asia |
| Cooper–Church Amendment |
| 1971 Vietnam |
| Repeal of Tonkin Gulf Resolution |
| 1973 Southeast Asia |
| Case–Church Amendment |
| 1973 |
| War Powers Resolution |
| 1974 |
| Hughes–Ryan Amendment |
| 1976 Angola |
| Clark Amendment |
| 1982 Nicaragua |
| Boland Amendment |
| 2007 Iraq |
| House Concurrent Resolution 63 |
| 2011 Libyan War |
| House Joint Resolution 68 |
| 2013 Syrian Civil War |
| Syria Resolution |
| 2018–2019 Yemen |
| Yemen War Powers Resolution |
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 The Acts were largely repealed in 1941, in the face of the Lend-Lease Act.