The U.S. Senate has formally declared war on 11 different countries, relating to five separate conflicts. The Senate's vote is the second step in this process, after a similar vote is held in the House of Representatives, and the results of these votes have generally been aligned. The last time such a vote was taken was during the Second World War, after which point the use of alternative approval methods have become more common. More information can be found here.
Results of votes to declare war in the United States Senate from 1812 to 1942
*The source states that the vote for a Declaration of War against Spain in 1898 was done by voice. Some sources give figures of 42 for, and 35 against.
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US Senate. (August 19, 2022). Results of votes to declare war in the United States Senate from 1812 to 1942 [Graph]. In Statista. Retrieved December 22, 2024, from https://www.statista.com/statistics/1327912/us-senate-votes-declare-war/
US Senate. "Results of votes to declare war in the United States Senate from 1812 to 1942." Chart. August 19, 2022. Statista. Accessed December 22, 2024. https://www.statista.com/statistics/1327912/us-senate-votes-declare-war/
US Senate. (2022). Results of votes to declare war in the United States Senate from 1812 to 1942. Statista. Statista Inc.. Accessed: December 22, 2024. https://www.statista.com/statistics/1327912/us-senate-votes-declare-war/
US Senate. "Results of Votes to Declare War in The United States Senate from 1812 to 1942." Statista, Statista Inc., 19 Aug 2022, https://www.statista.com/statistics/1327912/us-senate-votes-declare-war/
US Senate, Results of votes to declare war in the United States Senate from 1812 to 1942 Statista, https://www.statista.com/statistics/1327912/us-senate-votes-declare-war/ (last visited December 22, 2024)
Results of votes to declare war in the United States Senate from 1812 to 1942 [Graph], US Senate, August 19, 2022. [Online]. Available: https://www.statista.com/statistics/1327912/us-senate-votes-declare-war/
