East Tennessee Convention

The East Tennessee Convention was an assembly of Southern Unionist delegates primarily from East Tennessee that met on three occasions during the Civil War. The convention most notably declared the secessionist actions taken by the Tennessee state government on the eve of the war unconstitutional, and requested that East Tennessee, where Union support remained strong, be allowed to form a separate state that would remain part of the United States split from the rest of Confederate Tennessee (a la West Virginia).

Source: Wikipedia — East Tennessee Convention (CC BY-SA 4.0)