The Great Plains was one of the last remaining areas to be colonised during the 19th century, where Indian tribes were supported by mighty herds of buffalo. Even with firearms, the settlers and US Army could not compete with the power of the Indian tribes. Key Generals Sherman and Sheridan were drafted in to march on the Indians and, using techniques they’d had success with during the Civil War, decided to starve the enemy into submission by destroying their supplies. They waged war on the buffalo.