<span>B begin rescue breath
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The major cause is the Germany was using submarines to sink down the American ships and killed all of the American soldiers, and that is why the U.S join the war and pay back... mark me brainlist please...
A. Leaders believed the monarchs could help prevent any one ruler from taking too much power.
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Answer: from Egypt to South Africa
Explanation: the British managed to link Mediterranean with Indian Ocean and South Atlantic in the end of 19th century. Like that they controlled strategic points in terms of geopolitics. But in fact decline of British Empire started already before 1850s.
