Korea (depending on your outlook - but that is a different discussion)
Vietnam.
Laos
Cambodia
Dominican Republic
Granada
Haiti
Panama
Iraq v1
Afghanistan
Iraq v2
Libya

Roadmap: Iran, Syria, North Korea...

Note that this list does NOT included failed invasion attempts and covert operations.
Yugoslavia and many small interventions or air attacks.
But still today, there are more American troops stationed in Western Europe, than the USSR ever had in Eastern Europe!
It doesn't seem to be the trueth, but they are more widespread and it is impossible to make them go away.