Robert Kagan: “Americans are entering the most dangerous world they have known since World War II, one that will make the Cold War look like child’s play and the post–Cold War world like paradise. In fact, this new world will look a lot like the world prior to 1945, with multiple great powers and metastasizing competition and conflict.”“The U.S. will have no reliable friends or allies and will have to depend entirely on its own strength to survive and prosper. This will require more military spending, not less, because the open access to overseas resources, markets, and strategic bases that Americans have enjoyed will no longer come as a benefit of the country’s alliances. Instead, they will have to be contested and defended against other great powers…”“Americans are so accustomed to this basically peaceful, prosperous, and open world that they tend to think it is the normal state of international affairs, likely to continue indefinitely. They can’t imagine it unraveling, much less what that unraveling will mean for them.”