The U.S.Army model 1913 Cavalry Saber was designed by 2nd Lt (later General) George S Patton Jr. He was the Master of Sword at the Mounted Service School in the early 1900’s so it was still being taught in the 20th century. US.Navy Sailors were taught cutlass fighting in the Civil War. The Model 1860 & 1863 Naval Cutlasses were carried by the US Navy aka “Union” navy.