One of the reason of why maybe a war can be started in the 1812 is economy problems food resources, or even an disagreement.
Bartolomeu Dias was the first European explorer to sail around the southern tip of Africa discovering what is called the Cape of Good Hope. This discovery made it possible for Europeans to trade with Asia and India via water instead of across land, which was very expensive at the time.
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I looked this up hope this is correct
The war was actually between Japan and USSR, not Russia. It was fought on land belonged to China with US and Western allies watching and supporting the Chinese govt.
Japan was the aggressor and invaded part of China bordering USSR. To protect its own interests in China, USSR fought off Japan and took over the puppet govt in Manchuria set up by Japan. It allowed USSR to spread communism to China which turned into a communist country later. US and Western allies won WWII but were alarmed to see the spreading of communism. That confrontation was the beginning of the cold war.
"Raw materials were shipped from Africa to European industries"
The Monroe Doctrine and the Roosevelt Corollary made it possible for the United States to go to Latin America and try to make them a part of the United States. The Roosevelt Corollary made it possible for the Monroe Doctrine to be enforced.