To prepare the country for world war 1, what became an early focus of american industrial mass production? ships, airplanes, automobiles, or ammunition

they had more african americans than any other state.

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explanation:

ww1 weapons: tank. tanks were used for the first time in the first world war at the battle of the somme. they were developed to cope with the conditions on the western front. the first tank was called 'little willie' and needed a crew of 3.