Just read about JD Vance's military service

[KS Toronado]

After graduating from Middletown High School in 2003, Vance enlisted in the U.S. Marine Corps. He
was deployed to Iraq as a combat correspondent for six months in late 2005. There, he was assigned
to the Public Affairs section of the 2nd Marine Aircraft Wing. About his service, he commented that it
"taught me how to live like an adult" and he was "lucky to escape any real fighting"

Appears he was in for four years and attained the rank of Corporal, is that about normal rank
achievement for 4 years? That an E3 or E4 in the Marines? I made SPC4 in 11 months in the Army
and SPC5 at 22 months. (lucky, right place at the right time)

https://en.wikipedia.org/wiki/J._D._Vance