You're right, Peace, he wasn't. Still, he is often referred to as General Custer for some reason. I think he was a general or a major general briefly at around the end of the Civil War, but he got demoted at some point after that.

Custer figured that a big, dramatic victory over Sitting Bull and Crazy Horse would be his last chance to parlay his military reputation into a successful political career...with maybe a shot at the presidency. It was go for broke time, because the Indian wars were clearly in their final days, so he risked all to be the first to trap and defeat the Lakota and Cheyenne. As it turned out, he risked too much.

Boy, just think what it would have been like if George Armstrong Custer had become the president of the USA sometime in the 1880s or 1890s! It would have been like having George Bush in the Oval Office a hundred and ten years ahead of schedule. ;-)