The battle of Palmito Ranch that was near the Brownsville on the coast of Texas and was the only battle not involving gunships.
Battle of Palmito is one the battle of Civil war fought in Palmito hill which was won by the confederates in South Texas.
Hence, the battle of Palmito Ranch that was near the Brownsville on the coast of Texas and was the only battle not involving gunships.
Therefore, the Option E is correct.
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