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
Postage stamps and postal history of the Confederate States on March 6, 1861, to head the new Confederate States of America Post-office Department. The Confederate Post Office proved to be very efficient and remained in operation for the entire duration of the Civil War. During the first seven weeks of the Civil War, the US Post Office still delivered mail from the seceded states. Mail that was postmarked after the date of a state's admission into the Confederacy through May 31, 1861, and bearing U.S. (Union) postage is deemed to represent 'Confederate State Usage of U.S. Stamps'. i.e., Confederate covers franked with Union stamps. After this time, private express