Confederate States of America diplomat to the Confederacy. Those nations recognized the Union and Confederate sides as belligerents. In 1863 the Confederacy expelled European diplomatic missions for advising their resident subjects to refuse to serve in the Confederate army. Both Confederate and Union agents were allowed to work openly in British territories. Some state governments in northern Mexico negotiated local agreements to cover trade on the Texas border. Pope Pius IX wrote a letter to Jefferson Davis in which he addressed Davis as the "Honorable President of the Confederate States of America". The Confederacy appointed Ambrose Dudley Mann as special agent to the Holy
Confederate States of America of the Confederacy, and Alexander H. Stephens, its former Vice-President, both wrote postwar arguments in favor of secession's legality and the international legitimacy of the Government of the Confederate States of America, most notably Davis' "The Rise and Fall of the Confederate Government". Once war with the United States began, the Confederacy pinned its hopes for survival on military intervention by Great Britain and France. The Confederates who had believed that "cotton is king" – that is, that Britain had to support the Confederacy to obtain cotton – proved mistaken. The British had stocks to last over a year and