If you go down that route, I have access to a Latin speaking academic for grammar verification.
(Google's Latin is about 80%, apparently, and the learning algorithm hasn't had enough time yet to fill it out)
OH! And as an alternative (and equally applicable to the armed forces)
Venimus, Vidimus, Calcimus Asinum
(or whatever it turns out to be - I'm not good at third person latin)
So, slightly tweaks - I don't have the (nor the skill, I don't think) to attempt a uniform and cap on the ghost. And certainly that mock-up salute needs proper doing (he's got wee stubby arms!)
There's nothing specific that denote a branch of the armed forces and I had a thought - what if you extend the shield up and create a negative space, where a member can get a small patch of service, and put it there, on top. That way, only one patch needs production, and the individual modifies on top to suit their personal situation.
This is assuming that all armed forces have little wing, rifle, anchor insignia, like the Canadian armed forces (I've seen these in surplus shops a lot.) Or small regiment/unit flash, like below (no disrespect to the Dirty Four Dozen, I just had a tough time quickly finding another patch like I had in mind);