Afghanistan’s fall may trigger other dominoes

Small dominoes can eventually topple big nations. The Taliban started tipping dominoes in local provinces and before long had most of Afghanistan under its control. Kabul was merely the last domino to fall.

The last domino in Afghanistan that is, certainly not the last around the globe.

The aftershocks of the failed U.S. withdrawal will reverberate for some time. If the U.S. should lose its historic mantle of supporting peace through strength, we will have to reckon with the consequences of chaos that results from perceived weakness.

In the midst of...