EBB AND FLOW

NOVEMBER 1950 - JULY 1951

by
Billy C. Mossman

CENTER OF MILITARY HISTORY
UNITED STATES ARMY
WASHINGTON, D.C., 1990

. . . to Those Who Served

Foreword

Ebb and Flow records an important chapter in the Korean War. It begins with the last weeks of the pell-mell rush of United Nations forces to the Chinese border and goes on to describe in great detail the test of American military leadership and resources posed by the taxing retreat of the Eighth Army and X Corps across the frozen wastes of North Korea. It also examines the special problems posed to a fighting army during the deadly months of stalemate in the summer of 1951.

The part of the war described in this volume raises many questions for the military strategist and provides a treasure trove of lessons for the student of the art of war. The book emphasizes the limitations imposed by terrain and weather on the fighting capabilities of an American army facing surprise attack from a large, disciplined enemy. The operations it describes to such careful detail will help vivify the principles of war for those who would study the profession of arms.

It seems particularly appropriate that this volume is going to the printer during a year when the Army is emphasizing the theme of training. It is important to study carefully such a recent and important example of an American army performing superbly against great odds. I encourage the military student and veteran alike to take advantage of the insights into our profession imparted in the pages that follow.

The Author

A graduate of Wayne State (Nebraska) College, Billy C. Mossman is the author of studies and monographs on U.S. Army operations in the Korean War and of two chapters, "Peace Becomes Cold War, 1945-50," and "The Korean War, 1950-53," in American Military History, a volume in the Army Historical Series. He contributed to Origins, History, and Accomplishments of the U.S. Army Reserve, published by the Historical Evaluation and Research Organization, and to Challenge and Response in Internal Conflict, published by the Center for Research in Social Systems, American University. He is also coauthor of The Last Salute: Civil and Military Funerals, 1921-1969.During World War II, Mr. Mossman served as a platoon leader with the 381st Infantry, 96th Infantry Division, and participated in the Leyte and Okinawa campaigns in the Pacific theater. In the Korean War, he was a military historian with the Eighth Army; Army Forces, Far East; and United Nations Command Military Armistice Commission. Mr. Mossman joined the Office of the Chief of Military History as an Army officer in 1954 and became a civilian staff member in 1957. As a civilian staff member, he served successively as historian, deputy branch chief, branch chief, and acting division chief. He retired in 1983 but remains active in the field of military history.

Preface

This book describes military operations during the Korean War from late November 1950 to early July 1951, a period in which battle lines did indeed ebb and flow in pronounced surges. The volume is one of several in the United States Army in the Korean War series. In its coverage of combat operations, the book falls in the series between South to the Naktong, North to the Yalu by Roy E. Appleman and Truce Tent and Fighting Front by Walter G. Hermes.In describing the large-scale engagements that occurred between sizable opposing forces over seven months' time, I had to focus treatment of the battles at a somewhat high level, often corps or army. I also had to be selective in the use of detail. While this approach does not fully record the gallantry, suffering, and achievements of individual men in combat, I hope that the battle descriptions clearly indicate the substantial measure of their individual accomplishments and valor. I wrote this book over many years, interrupting my work on numerous occasions and for long periods to carry out other responsibilities and assignments. In fact, I gave the account its final touches after I retired from the Center of Military History. It was also in retirement that I designed the maps and selected the photographs that illustrate the book. During the years spent writing the book, I received valuable support and assistance from many people. Supervisory officials at all levels provided unfailing support. The successive Chiefs of Military History included Brig. Gen. James A. Norell, Brig. Gen. William H. Harris, Brig. Gen. Hal C. Pattison, Brig. Gen. James L. Collins, Jr., and Brig. Gen. William A. Stofft. Holding the post of Chief Historian during the period of preparation were Dr. Stetson Conn, Dr. Maurice Matloff, and Dr. David Trask. I received valuable assistance and guidance from a considerable number of officers who served as Chief, Histories Division: Lt. Col. James C. Griffin; Col. Louis G. Mendez, Jr.; Col. Paul P. Hinkley; Col. Leonard G. Robinson; Col. Albert W. Jones; Col. John E. Jessup, Jr.; Col. James W. Dunn; and Lt. Col. Richard O. Perry. Wise counsel also came from my branch chiefs: Charles B. MacDonald, Robert Ross Smith, Robert W. Coakley, and Walter G. Hermes. Over the course of my research, Hannah M. Zeidlik, currently the Chief, Historical Resources Branch, was a mainstay in obtaining and

providing essential records, studies, and reports. On the production level, Joyce W. Hardyman performed the main editing of the volume assisted by James W. Grandy. Also importantly involved in the production process were John W. Elsberg, the current Editor in Chief, Barbara H. Gilbert, and Rae T. Panella. Arthur S. Hardyman and Linda M. Cajka processed the maps from layout to final form. Howell C. Brewer handled the acquisition and preparation of the photographs that illustrate the volume.

Notwithstanding the significant contributions of the persons named above, I alone am responsible for the interpretations made and conclusions drawn in this book and for any deficiencies that it may have.

Contents

Tables

Charts

Maps

Illustrations