Some historians write that World War I (the Great War) was avoidable. What institutions and ideas developed after 1919 to prevent a recurrence? Why did they fail by 1939?
How did World War I change the face of modern warfare? Did the warring parties violate or ignore understandings about tactics and weapons? Were any international agreements violated or ignored?
International agreements have a mixed record of success in terms of limiting or preventing dangerous behavior by individual nations. How can this be improved or changed?

after the roman empire, the catholic church began to unify by taking on many duties of a government.

the correct answer is b

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"the sepoy rebellion was the result of many, many influences and stressors on the cultures of india living under british rule. in britain, it's called the sepoy mutiny on the indian mutiny, but in india, it's called the first war of independence.

the main reason is concerned to the british paramountcy , the belief in british   dominance in india political, economic and cultural life had been introduced in india about 1820."

"they were forced to grow crops that benefited the colonizing nations instead of feeding their own people."

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