The United States will never understand that while they are a technologically advanced army, they will consistently get smoked by countries with a far more rudimentary arsenal. It's been happening in every war since Vietnam.

The US could probably steamroll Russia in a week, because both countries will try to deploy the latest tech they have, and the US blows Russia out of the water. But in Iran, Iraq, Afghanistan, Somalia ... etc, their stealth jets and raptors stand no chance with weapons so old that those new systems didn't even account for.