Answer:
The alliance system, which were the triple alliance formed by Germany,Italy and Austria-Hungary and the Triple Entente formed by UK,France and Russia.
The alliance system had caused great suspicion among the nations, as the alliance system was meant to be kept secret. The nations would be wary that they were to start war as they found backups for themselves.
It also support a nation's will to start a war as they would have back up, this urged WWI to happen.For example, with the support of Germany (blank cheque) Austria-Hungary sent an ultimatum to Serbia,which was impossible for Serbia to fulfill, finally lead to the outburst of WWI.
In addition, the system would enlarge the war scale to become a world war as one another would be drag into the war if one were involved.
Explanation:
Answer: Restoration of the Union, transformation of southern society, and enactment of progressive legislation favoring the rights of freed slaves.
Answer:
When France's expansion into the Ohio River valley brought repeated conflict with the claims of the British colonies, a series of battles led to the official British declaration of war in 1756.
Explination:
The French and Indian War began in 1754 and ended with the Treaty of Paris in 1763. The war provided Great Britain enormous territorial gains in North America, but disputes over subsequent frontier policy and paying the war's expenses led to colonial discontent, and ultimately to the American Revolution.
The Chinese were addicted to the Opium.