Assertion: battalion's unit | /r/CapableOf | coordinate their efforts
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Source sentences:
text: The coming of war in Europe in 1939 brought about renewed vigor for the development of barrage balloons, and on March 14, 1941, the General Staff of the U.S. military designated barrage balloons to be in joint control of both the Air Corps and the Coastal Artillery Service, and both units began to coordinate their efforts.