here's a few ideas:
"Punctum Hastam" = "Tip of the Spear"
"Sicut enim pugno" = As one we fight"
"Semper vigilans" = "Ever vigilant"
"Virtute et Armis" = "By Valor and Arms" (funny enough, this is the Missisippi state motto)
"Accipe hoc" = "Take this", Motto of 848 Naval Air Squadron, Royal British Navy.
"ad astra per aspera" = "A rough road leads to the stars", as on the Launch Complex 34 memorial plaque for the astronauts of Apollo 1.
"ad victoriam aut mortem" = "To victory or death"
"audentes fortuna iuvat" = "fortune favors the bold"
"victoria aut mors" = "victory or death"
"canes pugnaces" = "war dogs" or "fighting dogs"
"dum vivimus servimus" = "While we live, we serve"
"in omnia paratus" = "Ready for anything."
"orbis unum" = "one world"
" per ardua ad astra" = "through adversity to the stars"
"per unitatem vis" = "through unity, strength"
"qua patet orbis" = "as far as the world extends"
"sine metu" = "without fear"
"stamus contra malum" = "we stand against evil"
"unitas per servitiam" = "unity through service