Answer:
Better known as "The Rough Riders". Commanded by Colonel Leonard Wood, but associated in popular memory with his second in command, Lieutenant Colonel Theodore "Teddy" Roosevelt. Captured Kettle Hill with a lot of help from the professional regular cavalry troopers of the 9th and 10th Cavalry (Negro), the famous "Buffalo Soldiers", then crossed over to San Juan Hill. This is remembered as Teddy leading the Rough Riders up San Juan Hill.