Cotton diplomacy
Cotton diplomacy refers to the diplomatic methods employed by the Confederacy during the American Civil War to coerce the United Kingdom and France to support the Confederate war effort by implementing a cotton trade embargo against the United Kingdom and the rest of Europe. The Confederacy believed that both the United Kingdom and France, who before the war depended heavily on southern cotton for textile manufacturing, would support the Confederate war effort if the cotton trade were restricted.
Ultimately, cotton diplomacy did not work in favor of the Confederacy. In fact, the cotton embargo transformed into a self-embargo which restricted the Confederate economy. Ultimately, the growth in the demand for cotton that fueled the antebellum economy did not continue.
Background
Until the American Civil War, cotton was the south's primary product. The southern economy heavily relied on the continual growth and production of cotton. Southern cotton, also referred to as King Cotton, dominated the global cotton supply. By the late 1850s, Southern cotton had accounted for "77 percent of the 800 million pounds of cotton consumed in Britain, 90 percent of the 192 million pounds used in France, 60 percent of the 115 million pounds spun in the German Zollverein, and as much as 92 percent of 102 million pounds manufactured in Russia."