Why can't the US seem to focus on the Asia-Pacific region instead of the Middle East?

In November 2011, President Barack Obama laid out his vision for America’s expanded role in the Asia-Pacific region, which soon became known as the "pivot to Asia.” American foreign policy, Obama announced, would be shifting its focus away from costly wars in the Middle East and towards strengthening partnerships in the Asia-Pacific to curb a rising China. In short, America’s 21st-century foreign policy would be pointed firmly to the East.

Fast-forward to 2023, and America’s “Pivot to Asia” is a little more complicated. The Israel-Hamas conflict, which could quite easily spiral into a larger regional war with the US and Iran, is only the latest example. And though not in the Middle East, the war in Ukraine remains one of the biggest and most expensive US foreign policy priorities. This is not, in short, the 21st-century foreign policy vision that President Obama had in mind.