
Empires don’t just fall like toppled trees. Instead, they weaken slowly as a succession of crises drain their strength and confidence until they suddenly begin to disintegrate. So it was with the British, French and Soviet empires; so it now is with imperial America.
Great Britain confronted serious colonial crises in India, Iran and Palestine before plunging headlong into the Suez Canal and imperial collapse in 1956. In the later years of the Cold War, the Soviet Union faced its own challenges in Czechoslovakia, Egypt and Ethiopia before crashing into a brick wall in its war in Afghanistan.