Assertion: corps's plan | /r/HasProperty | adopted in march
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text: On 5 October 1940, Arnold drew up a proposal to reorganize the air arm along functional lines, creating an air staff, unifying the various organizations under one commander, and giving it autonomy with the ground and supply forces—a plan which was eventually adopted in March 1942—and submitted it to Chief of Staff George C. Marshall, but it was immediately opposed by the General Staff in all respects.