Detachments from: The Battle of Mustang Island (November 17, 1863) was fought in Texas during the American Civil War.

Banks directed Brigadier General Thomas E. G. Ransom on an expedition against a Confederate earthen fortification on Mustang Island known as Fort Semmes.

Ransom's men fired one volley causing the Texas skirmishers to retreat back into Fort Semmes.

The small garrison of Fort Semmes was not prepared for open battle and the fighting was over shortly after the attack commenced.

[1] Major Dunaway decided upon an unconditional surrender of the entire garrison rather than making an attempt to fight their way back to the mainland.