Northern Peace democrats, the group that was most dangerous to the union.
The Copperheads were a vocal group of Democrats in the Northern United States who opposed the American Civil War, wanting an immediate peace settlement with the Confederates. Republicans started calling antiwar Democrats "copperheads", likening them to the poisonous snake. The Peace Democrats accepted the label, but for them the copper "head" was the likeness of Liberty, which they cut from copper pennies and proudly wore as badges.
The Copperheads were a vocal group of Democrats in the Northern United States who opposed the American Civil War, wanting an immediate peace settlement with the Confederates. Republicans started calling antiwar Democrats "copperheads", likening them to the poisonous snake. The Peace Democrats accepted the label, but for them the copper "head" was the likeness of Liberty, which they cut from copper pennies and proudly wore as badges.