Texas's involvement in the Civil War was marked by its secession from the Union and joining the Confederacy. The state provided crucial resources and manpower to the Confederate cause, while its distance from major battles allowed it to serve as a supply base and refuge. Reconstruction in Texas brought significant changes, including the emancipation of slaves and the granting of citizenship and voting rights to African Americans. However, the period was also characterized by political instability, racial tensions, and economic challenges that would shape Texas for years to come.