with close attention. In Spain, although to a more limited extent
than is often imagined, the Germans used close air-support tactics
and aircraft, including dive-bombers. They found that this required
an effective ground–air liaison system, and developed one. These
tactics were to be important in the early stages of World War Two.
7
Nevertheless, in practice, ideas advanced further than technolog-
ical capability and resource availability, as was to be shown in the
early land campaigns in World War Two.A lack of allocated industrial
capacity and/or of funds was a major factor, and, in part, reflected
the severity and global span of the Depression of the 1930s.The lack
of funds was particularly apparent in the USA, which was to be the
global military power of World War Two and which had the largest
economy in the world in the 1930s. Limited expenditure on the
American military, which reflected a lack of public and political will,
led to inadequate manpower and resources, as well as a failure to
stage major manoeuvres, and thus ensure operational training.
However, there were also limitations, if not deficiencies, in areas of
doctrine and equipment. For example, tank warfare was given little
role and no independence under the National Defence Act of 1920.
Instead, tanks were allocated to the infantry, an allocation only chal-
lenged in 1931 when light tanks were assigned to the cavalry. It took
the fall of France to the Germans in 1940 to lead to the rearmament
of the American army and to inspire the creation of the United
States Armored Force, although the navy had already begun to rearm
(but not to expand). Prior to 1940, the American army had made a
serious attempt to assess the lessons of World War One, and also
devoted much attention to the military education of officers, but the
failure to develop combined army doctrine affected the army in the
early stages of World War Two. In preparation for independence from
the USA, an army of Filipino conscripts had been created in the
Philippines, but it lacked funds, equipment and adequate training,
and its deficiencies were to be cruelly exposed by the Japanese when
they attacked in 1941–2.
8
New weaponry, related operational doctrines and the character of
military thought in the inter-war period are generally considered in
light of what was to happen in World War Two, but, before becoming
too judgemental, it is also necessary to note the lack of clarity about
what constituted military progress, the variety of responses, and the
BACKGROUND
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