[1] They were named X Force and used by General Joseph Stilwell as the spearhead of his drive to open a land route to China (the Ledo Road).China Defensive 1942-1945 was an essay prepared for the United States Army Center of Military History by Mark D. Sherry.As long as China stayed in the war, millions of Imperial Japanese Army soldiers could be tied down on the Asian mainland instead of being used to fight on other fronts.How well both General Stilwell and General Wedemeyer persuaded the theater commander-in-chief, Generalissimo Chiang, to support U.S. strategic goals, and how effectively U.S. training and material support could build selected Chinese divisions into modern tactical units, capable of standing up to the Japanese, were secondary objectives.The closing of the Burma Road in 1942 made it impossible to deliver sufficient equipment, weapons, and munitions to build the dream of a well-equipped and trained thirty-division Chinese force.