How did Americans help support the war efforts on the homefront during World War I?

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Explanation:

Young men joining the draft, helped build wartime economy, sharing public opinion. conserving food and increase production of goods.

Leapfrogging was a military strategy employed by the Allies in the Pacific War against the Axis powers (most notably Japan) during World War II. It entailed bypassing and isolating heavily fortified Japanese positions while preparing to take over strategically important islands.