…but this guy is clearly not a Marine, at least to a former Airman who was shown this one by a former Soldier who asked me, “Isn’t this an Air Force guy?”
Update: Looks like the Marines also have Tech Sergeants.
And I just noticed “Marine soldier.” Argh!
Update II: Per SgtMom’s request, let’s start with insignia:
And that from just googling “us military insignia.”