The partition of the Jin state created seven major
warring states. After a series of wars among these
powerful states, King Zhao of Qin defeated King Nan of
Zhou and conquered West Zhou in 256 BCE; his
grandson, King Zhuangxiang of Qin, conquered East
Zhou, bringing the Zhou Dynasty to an end.
It brought the USA into a war that up till now they were trying to stay out of. It also caused the creation and use of the first nuclear bomb
Answer: C. They converted to Christianity and established ties to the Church
The Franks were able to create a connection to the Catholic Church after they have decided to be converted to Christianity and was able to established connections or ties to the church.
The nation that joined the war in 1917 was the United states but not necessarily as part of the allies, rather America had opted to fight Germany, an enemy of the allies, more as an associate ally to protect its own interests.
American went to war to stop German aggression and spread values of democratic freedom and made decisive contributions to the final battles of 1918.
The Americans decided neutrality would not do when German aggression on the high seas went on to such an extent that it threatened U.S. national security, and so the Germans had to be stopped.