It was the "B. Battle of Iwo Jima" that was one of the most devastating for U.S. Marine Corps, since this was a five-week-long battle waged by the US against the Japanese that was one of the bloodiest in the entire war.
Answer: the empire began to split due to wars over succession, as the grandchildren of Genghis Khan disputed whether the royal line should follow from his son and initial heir ogedei or from one of his other sons.
Explanation:
In addition, diseases brought by Europeans raged throughout the New World where people had no resistance, killing tremendous numbers of natives. Columbus's voyages also led to negative effects in Africa. Eventually, Europeans who came to the Americas decided that they needed labor to work their American plantations.
