We're tied to Israel (and Egypt) via the Camp David Accords from back in the 1970s. And of course we tend to give Israel military aid when asked.
Another factor is interest is sea lanes for commerce. The US Navy is practicably the only force able to ensure them, and when they get imperiled, it does impact the US.
I suspect most of "us" would prefer seeing a lower level of US commitment overseas, but it's just not going to happen, realistically, no matter who gets elected. This is also one main reason our military spending is so high. No other country has anything like the US' ability to "project power".