South Carolina, Mississippi, Georgia, and Texas also issued separate documents purporting to justify secession.

[citation needed] In Missouri and Kentucky, attempted secession was belated, severely disrupted, lacked sufficient popular support, and failed.

When Confederate armies invaded Kentucky in 1862, bringing extra arms to equip new volunteers, briefly seizing the state capital, and installing an ephemeral state government, local recruitment proved weak and Union forces soon decisively defeated the invasion.

Despite Missouri and Kentucky remaining within the Union, thousands from both states embraced secession by choosing to fight for the Confederacy.

Elsewhere, the Delaware legislature quickly, firmly rejected secession despite targeted lobbying from states intending to secede.

President Lincoln's suspension of habeas corpus and overwhelming Union military intervention aimed at protecting Washington blocked the Maryland legislature, or any other group in Maryland, from considering secession further after the legislature overwhelmingly rejected calling a secession convention but retained some notion of limiting cooperation with the Union and military coercion.