European colonization of Africa was mainly due to its need for raw material.
The invasion, territorial split, colonization and annexation of African territories during the period of the New Imperialism was know as The race for Africa, period which protracted from the 1880s to the beginning of World War I.
By the early twentieth century much of Africa, except Ethiopia and Liberia, had been colonized by European powers, despite the resistance Africa put up against the attempt to colonize their countries.
The main reason why America joined WWI was the German's use of submarines in the North Atlantic and the Mediterranean.
<h3>What were British strategies in WWI?</h3>
The main strategy of the British during World War I was the use of blockade of Germany so that they would be cut off from supplies.
Hence, we can see that the British and German navies were locked in battle and this made it difficult for America to remain neutral in the war the United States decided to join the war after the blockade which led to economic difficulty for America also the presence of German U-boats.
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One reason that more people didn’t foresee the economic collapse of the 1930s was because "<span>A*Few people understood the risks involved with buying stock on loan."</span>
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