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Custer commits his column
With Reno heavily engaged, Custer attempts to cut off any retreat and envelop the village, committing two brigades, about 210 troopers, to an assault on its opposite side. While Cheyenne and Sioux warriors emerge to meet this second threat, Crazy Horse leads a war party a short distance downstream along the Little Bighorn and then doubles back to attack Custer. The result is a classic envelopment of Custer’s command.