Diplomacy of the American Civil War

The diplomacy of the American Civil War involved the relations of the United States of America and the Confederate States of America with the major world powers during the American Civil War of 1861–1865. The United States successfully prevented other powers from recognizing the Confederacy, which counted heavily on Britain and France to enter the war on its side to maintain their supply of cotton and to weaken a growing opponent. Every nation was officially neutral throughout the war, and none formally recognized the Confederacy.

The major nations all recognized that the Confederacy had certain rights as an organized belligerent. A few nations did take advantage of the war. Spain recaptured its lost colony of the Dominican Republic. It lost it again in 1865. More serious was the war by France, under Emperor Napoleon III, to install Maximilian I of Mexico as a puppet ruler, hoping to negate American influence. France, therefore, encouraged Britain to join in a policy of mediation, suggesting that both recognize the Confederacy. Washington repeatedly warned that any recognition of the Confederacy was tantamount to a declaration of war. The British textile industry depended on cotton from the South, but it had stocks to keep the mills operating for a year and in any case, the industrialists and workers carried little weight in British politics. Knowing a war would cut off vital shipments of American food, wreak havoc on the British merchant fleet, and cause the immediate loss of Canada, Britain and with its powerful Royal Navy, refused to go join France.

Historians emphasize that Union diplomacy proved generally effective, with expert diplomats handling numerous crises. British leaders had some sympathy for the Confederacy, but were never willing to risk war with the Union. France was even more sympathetic to the Confederacy, but it was threatened by Prussia and would not make a move without full British cooperation. Confederate diplomats were inept, or as one historian put it, "Poorly chosen diplomats produce poor diplomacy." Other countries played a minor role. Russia made a show of support of the Union, but its importance has often been exaggerated.

Lincoln's foreign policy was deficient in 1861, and he failed to garner public support in Europe. Diplomats had to explain that the United States was not committed to the ending slavery, instead appealing to the unconstitutionality of secession. Confederate spokesmen, on the other hand, were much more successful: ignoring slavery and instead focusing on their struggle for liberty, their commitment to free trade, and the essential role of cotton in the European economy. In addition, the European aristocracy (the dominant factor in every major country) was "absolutely gleeful in pronouncing the American debacle as proof that the entire experiment in popular government had failed. European government leaders welcomed the fragmentation of the ascendant American Republic."

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