The purpose of this study is to collect all available facts pertinent to the Remagen Bridgehead Operation, to collate these data in cases of conflicting reports, and to present the processed material in such a form that it may be efficiently utilized by an instructor in preparing a period of instruction. The data on which this study is based was obtained from interviews with personnel who took part in the operation and from after action reports listed in the bibliography. This is an Armored School publication and is not the official Department of the Army history of the Remagen Operation. It must be remembered that the Remagen Operation is an example of a rapid and successful exploitation of an unexpected fortune of war. As such, the inevitable confusion of facts and the normal fog of war are more prevalent than usual. The absence of specific, detailed prior plans, the frequent changes of command, and the initial lack of an integrated force all make the details of the operation most difficult to evaluate and the motives of some decisions rather obscure. The operation started as a two-battalion action and grew into a four-division operation within a week. Units were initially employed in the bridgehead, as they became available, where they were most needed: a line of action that frequently broke up regiments. In cases of conflicting accounts of the action, the authors of this study have checked each action and each time of action included in the study and have evaluated the various reports in order to arrive at the most probable conclusions.