When you say not willing to protection their interests. You mean the US tax payer needs to keep on paying to defend depend the Euro zone. Why can’t the Euro’s defend theselves?
That would be Russia. Russia went in and destroyed much of the infrastructure.
The United States, United Kingdom, China, Pakistan, and Iran armed the Afghan mujahideen in their fight against the Soviet Union in Afghanistan.
Here are some of Trump's deeds against Russia.
https://www.brookings.edu/articles/on-the-record-the-u-s-administrations-actions-on-russia/
When the Wager Group attacked the US soldiers in Syria in 2019.
https://thewarhorse.org/special-forces-soldiers-reveal-first-details-of-battle-with-russian-mercenaries-in-syria/
Counties joined NATO because they didn't want anything to do with Russia. They seek protection from Russia, and the invasion Ukraine shows they made the correct decision.