Between 150 and 300 Native Americans were slaughtered by U.S. forces at Wounded Knee. Here is how one article describes the aftermath:

Army general Nelson Miles visited this killing field a few days later. He expressed shock that women with babies in their arms had been shot down, several miles from the initial “battle” site, indicating that soldiers systematically hunted down all who fled.

But hey, what’s a little joke about a massacre between friends?