I served. While in basic training, the drill sergeants taught us why we salute differently than other countries (probably apocryphal) - because we've "never lost a war". I'm cheeky now and I was then, so I asked about vietnam.
"Police Action" came the terse reply. "We don't talk about that one."
Course by then I'd already signed on the dotted, so...
We’ve never lost a war but we’ve definitely failed to accomplish our objectives a few times along the way. We built the greatest hammer the world has ever seen then asked it to saw lumber and wondered why it failed.
That’s not true at all. We just don’t talk much about the ones we won.
Last year I went to Grenada, which we invaded in the 80s. They love us for it and have statues of Reagan on the island. Without us, they probably would have suffered the same fate as Cuba.
Where would South Korea be without our intervention? Etc.