The use of machine guns in World War I increased fatalities and fundamentally changed the way battle was done by
eliminating the need for trenches
limiting the need for tanks
overheating the trenches, causing exposure to counterfire
effectively stopping traditional frontal assaults

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Explanation:

answer: alexander hamilton

explanation: alexander hamilton was george washington's right hand man. he took an early role in the militia as the american revolutionary war began. in 1777, he became a senior aide to general washington in running the new continental army.