Battle of palmito ranch which option analyzes the significance of this event in relationship to the civil war?

t was the westernmost battle fought during the civil war.

it was the battle with the highest union casualty rates.

it was the only civil war battle in which the mexican army intervened.

it was the final battle of the civil war.

The significance of the Battle of Palmito Rancho was that it was the final battle of the Civil War.

Explanation:

The Battle of Palmito Ranch took place on May 12 and 13, 1865 during the Civil War, near Brownsville, Texas. It opposed the armies of the Union commanded by Lt. Col. David Branson to Confederate forces under the leadership of Major John "Rip" Ford. It was the last battle of the Civil War, in which the last Union soldier, John J. Williams, was killed in action.