The experience of the last fifty years has shown that the idea that prevailed after World War II, that the United States could count on its military supremacy to impose democracy and capitalism on other countries, is past due.
No country, whatever its military might, can impose its will on other countries forever. This was an imperial idea that American neocon thinkers resurrected after the fall of the Soviet Empire (USSR) in December 1991, but nothing good came of it..