Excerpt
The relevant questions are: How did we get here? And what to do about it? The answer to the first question is that we forgot the lesson of history. One of my military mentors was Andy Marshall, the legendary Pentagon strategist, who liked to say that peace is best understood as an interlude between wars. Robert Gates issued a similar warning as he retired as defense secretary in 2011 when he said that, when wars end, the U.S. always makes the mistake of drawing down defenses and leaving ourselves vulnerable. We ignored him. So what do we do about it? The obvious initial answer is to spend more on defense, and soon. But that is the easy part; we know the policy solution. The harder issue is finding the political will to do it, while persuading adversaries that we are credible enough to restore American deterrence. As we have learned in Ukraine and now in the Middle East, U.S. deterrence has faded. And the world’s rogues are on the march.