Answer:
Russia mobilizing its forces on Germany's eastern borders was the event that made Germany declare war on the allies.
Explanation:
- The killing of Archduke Franz Ferdinand by the serbian nationalist Gavrilo princip was the trigger that started world war.
- The alliance system was an important factor that caused world war 1 as, any countries who were in alliance had to help the other country if a war broke out.
- In World War I, two major alliances faced each other.
- The two major alliances that fought for the power of Europe were : Allied power that includes Russia, Britain and France and the Central Powers(Germany, Austria-Hungary).
The Japanese attacked Pearl Harbor for the main reason of tension in the Pacific. The Americans weren't necessarily in the conflict at this point, but were sitting in the Pacific watching the Japanese, if the Japanese were to grow in power, they can't have the Americans on their tail. The attack counterattacked the Japanese if you really look at it. Most people would relate the Pearl Harbor attacks as "poking the sleeping bear with a stick", and that's true. We turned the fighting back to the Japanese in the months after the attack. And four long years later, we dropped the "Little Boy" atomic bomb on island town of Hiroshima -- And the second bomb called "Fat Man" on Nagasaki 3 days later. The Japanese surrendered less than a month after the bombings. So, the attacks of Pearl Harbor really hurt the Japanese more than it hurt the Americans.
It was positive, because the West had been critical of the war in Afghanistan and could only be satisfied once it was over.
Hope this helped :)
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