[Illustration: Map to illustrate the route of the three battalions at the Little Big Horn] Reno’s advance down the creek took him near to the east bank of river. Custer had followed him, slightly on his right flank. When Reno discovered the head of the village in the valley, he crossed the creek to Custer and reported what he had seen. Custer directed him to cross the river, move down the valley, and attack in force, informing him that he would be “supported” by Custer’s battalion. Reno accordingly put his battalion to a fast trot in columns of four, crossed the Little Big Horn River beyond the mouth of the creek, and proceeded onward for perhaps half a mile. Then he threw his troops in line, reaching from the river to the bluffs on the left, with the Arikara scouts on the left flank, and galloped down the valley for a mile farther.[77] Reno stated subsequently that he believed that Custer intended to keep behind him all the time; and he fully expected, should he come in contact with Indians, that Custer would be on hand to join in the attack. Custer, however, had not continued down the creek or crossed the river with Reno, but had swung off to the high bluffs on the right bank of the creek, east of the river. Reno mistook the purport of Custer’s statement. In order to support an attack, it is not necessary to get behind it. A flank attack or a demonstration in force, from some other direction, frequently may be the best method of supporting an attack. Custer’s plan was entirely simple. Reno was to attack the end of the village. Benteen was to sweep around and fall on the left of it, Custer on the right. The tactics in the main were those which had been used so successfully in the Battle of the Washita (q.v.), and were much in vogue among our Indian fighters during the Indian wars. Dividing forces in the face of an enemy to make several simultaneous attacks is dangerous, because it is almost impossible to secure a proper coöperation between the attacking units. A skilful general will concentrate his force upon the separately approaching and more or less isolated units and beat them in detail. Washington’s tactics at Germantown were similar to those of Custer; and his force, which would have swept the British from the field if his plans had been carried out, was beaten in detail for lack of coördination in the separate attacks. Some of Napoleon’s most brilliant battles were fought when he occupied interior lines and by successive attacks broke up converging columns.