"Great nations do not fight endless wars," U.S. President Donald Trump declared in his 2019 State of the Union speech. He had a point: Military entanglements in the Middle East have contributed to the relative decline of American power and facilitated China's muscular rise. And yet, less than a year after that speech, Trump ordered the assassination of Iran's most powerful military commander, Gen. Qassem Soleimani, bringing the United States to the precipice of yet another war. Such is the power of America's addiction to interfering in the chronically volatile Middle East.

The U.S. no longer has vital interests at stake in the Middle East. Shale oil and gas have made the U.S. energy independent, so safeguarding Middle Eastern oil supplies is no longer a strategic imperative.

In fact, the U.S. has been supplanting Iran as an important source of crude oil and petroleum products for India, the world's third-largest oil consumer after America and China. Moreover, Israel, which has become the region's leading military power (and its only nuclear-armed state), no longer depends on vigilant U.S. protection.