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In page Operation Market Garden:

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The commander of XXX Corps advocated another course of action. About 25 km (16 mi) to the west was another bridge at Rhenen, which he predicted would be undefended, because of all the efforts being directed on Oosterbeek. This was true, but the corps was never authorised to take the bridge; if it had, it is almost certain they would have crossed unopposed into the rear of the German lines. By this time, it appears that Montgomery was more concerned with the German assaults on Market Garden's lengthy "tail".[citation needed]