What British demand led to the Opium Wars in China? A. Britain wanted to stop the trade of opium from China to Europe.
B. Britain wanted to tax China's lucrative domestic trade in opium,
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C. Britain wanted to force China to replace growing rice with growing opium.
D. Britain wanted to force China to accept imports of British opium from India.

The quote below is an excerpt from the charter of the united nations: "the purposes of the united nations are: to maintain international peace and security, and to that end: to take effective collective measures for the prevention and removal of threats to the peace, and for the suppression of acts of aggression or other breaches of the peace, and to bring about by peaceful means, and in conformity with the principles of justice and international law, adjustment or settlement of international disputes or situations which might lead to a breach of the peace . " source:this section implies that the united nations is prepared to do what to keep world peace?