What was the last battle of the civil war?

The Battle of Palmito Ranch, also known as the Battle of Palmito Hill, is generally recognized as the final battle of the American Civil War. It was fought May 12 and 13, 1865, on the banks of the Rio Grande east of Brownsville, Texas and a few miles from the seaport of Los Brazos de Santiago, more than a month after Robert E. Lee had surrendered to Ulysses S. Grantin the Eastern Theater. Though the Battle of Appomattox Court House is identified as the last major battle of the war, Palmito Ranch was the last engagement between organized forces of the Union Army and Confederate States Army involving
casualties
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