It helped because it enabled other fronts to open up because the American Offensive in the area ended with a victory, which meant that they could move to other areas and bother Germans there. They didn't' do this however because the fighting ended since the Germans became aware of their losses and signed an armistice.
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The Battle of Lexington began on April 19, 1775 when Paul Revere arrived to Lexington, a town, and warned the minutemen there that "the British were coming". The British were ordered to arrest the rebels that did not want to pay the heavy taxes, but ended up becoming a war and eventually led to the American Revolution.
The Roman culture benefited the Greek stoicism
The event that extended that war was the French stopping the Germans from advancing in the west.
(I'll just use Greek mythology as an example)
The god and goddesses within the Greek mythology were birthed from many pieces of fictional literature at the time published by poets and philosophers at the time like Homer. The divine beings often represented the powerful forces of nature and human nature, to put in perspective at the insignificance of mortals below.
That's my take on it, more context for future questions would be appreciated, cheers.