Please recommend short and powerful Korean phrases suitable for the military!

Hello! It's been 2 years since I came to Korea, and I want to give my friend personalized chopsticks as a graduation gift in Itaewon. My friend is going to the military soon, so I'm looking for a short and meaningful Korean phrase that suits the military. Can you recommend one? I was thinking of "불가능은 없다" (Nothing is impossible), but it seems too common... Do you have any other good suggestions? I haven't been learning Korean for long, so I really need your advice. Thank you in advance! :)