He was in the assigned reservation area.

He had been trying to comply with treaty terms.

He had just been told by an American official that he couldn’t get a guarantee of safety.

Three days later, Custer attacked at dawn.

The Battle of the Washita: November 27, 1868

The attack on Black Kettle’s camp at the Washita River followed the same basic pattern as the attack at Sand Creek: a dawn assault on a sleeping camp, a military force with overwhelming firepower attacking people who had no warning.

There were differences.