Napoleon Bonaparte lost power to

Napoleon eventually fell from power in 1814 due to a combination of reasons, each resulting from a chain reaction originally caused by the failure of Napoleons’ major military campaigns, such as the ill fated campaign to invade Russia.

Explanation:

After a disastrous French invasion of Russia in 1812, Napoleon abdicated the throne two years later and was exiled to the island of Elba. In 1815, he briefly returned to power in his Hundred Days campaign.

on april 6, 1917, the u.s. joined its allies--britain, france, and russia--to fight in world war i. under the command of major general john j. pershing, more than 2 million u.s. soldiers fought on battlefields in france.

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