She knew it — knew the river, knew the valley, knew the camp and its organization.

When she mounted her horse and rode into the battle, she was riding into terrain she understood, toward a fight she could see unfolding around her.

THE SEVENTH CAVALRY AND ITS HISTORY

The Seventh Cavalry Regiment — the unit Custer commanded at Little Bighorn — was not a neutral institution.

It had a specific history with the Plains peoples that shaped the meaning of its appearance at the Greasy Grass and the meaning of its subsequent role at Wounded Knee.

The Seventh Cavalry was organized in 1866 as part of the post-Civil War reorganization of the Army for operations on the frontier.