By the time american troops entered world war 1 the allies a. were determined to win war b. were using trench warfare c. were exhausted after years of fighting d. were pr er prepared to attack germany

in 550 b.c.e. cyrus the great, the leader of the persians, conquered the medes and united the iranian people under one ruler for the first time. cyrus became the first king of the persian empire and went on to establish one of the largest empires in world.

a is your answer

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