infantry divisions were located overseas. No separate brigades existed. In almost every case, however, these divisions, which varied from inactive units to partially manned organizations, were "paper tigers."
After World War I the Army quickly demobilized its forces, but memories of the unpreparedness of 1917 caused the nation to change the way it maintained its military forces. Infantry and cavalry divisions, rather than regiments or smaller units, became the pillars that would support future mobilization. Officers examined the structure of those pillars and adopted a modified, but powerful, square infantry division designed for frontal attack and a small light cavalry division for reconnaissance. Although the lessons of war influenced the structure of these divisions, more traditional criteria regarding their local geographical employment continued to affect their organization. But with no real enemy in sight and the nation's adoption of a generally isolationist foreign policy, it is not surprising that Congress provided neither the manpower nor the materiel to equip even a caretaker force adequately.