On May 26, 1861, U.S. Postmaster General Montgomery Blair announced that all postal connections with the seceded states would be severed — a decisive break that ended decades of uninterrupted national correspondence. Until that moment, letters still moved across the widening divide, carrying family news and fragile hopes of reconciliation. Blair’s order, followed by a full suspension of Southern mail service on May 31, abruptly cut those lines.The Confederacy, forced to assume complete control of its own postal system by June 1, scrambled to issue stamps, reorganize routes, and replace the federal infrastructure it had relied on for generations. In a war fought with rifles and railroads, the sudden stillness of the mail became its own kind of battlefield — a quiet but devastating separation felt in homes on both sides of the line.