The liberal world order that arose after World War II did not occur because of the intellectual superiority of liberal ideas, argues Dr. Robert Kagan, a senior fellow at the Brookings Institution. Instead, it was the military and geopolitical might of the United States that converted countries like Germany and Japan into Western-style democracies. However, in today's world, Kagan believes the United States is ceding this role as a worldwide protector of liberal values, enabling countries like Russia and China to become more authoritarian and threatening the world order. Going forward, only a realistic foreign policy that employs military strength to spread American democratic values can prevent a further decay of democracy, he says.

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