Original sentence: Although the Seventh is best known for its catastrophic defeat at the Little Bighorn, the regiment also participated in at least one impressive victory: the capture of Chief Joseph's Nez Perce at the Battle of Bear Paw in 1877
Edited sentence: (To be fair to Custer, many historians think that Custer was betrayed by his subordinates Reno and Benteen).Although the Seventh are best known for their catastrophic defeat at the Little Bighorn, they also participated in at least one impressive victory: the capture of Chief Joseph's Nez Perce at the Battle of Bear Paw Mountain in 1877