The acquisition of such extensive global responsibilities was not easy. But it is a delusion to believe that shedding them will be easier. This is the lesson of British history to which Americans need to pay more heed. President Joe Biden’s ill-advised
decision for a “final withdrawal” from Afghanistan was just the latest signal by an American president that the country wants to reduce its overseas commitments. Barack Obama began the process by exiting Iraq too hastily and announcing in 2013 that “America is not the world's policeman.” Donald Trump’s “America First” doctrine was just a populist version of the same impulse: he too itched to get out of Afghanistan and to substitute tariffs for counterinsurgency.
The problem, as this month’s debacle in Afghanistan perfectly illustrates, is that the retreat from global dominance is rarely a peaceful process.