Looking back at 60 years of American involvement in the region, one can discern two scenarios in which the United States can bring the local players to an agreement. Absent these conditions, the US is ultimately powerless.
回顾美国介入该地区60年的历程，人们可以清楚的看到，美国要想使当地的各种势力达成共识需要两个背景条件。缺少这些条件，美国就完全无能为力。