Young Military Marriage Following A Long Distance Relationship?

Hello! My boyfriend and I have been dating for well over three years. He is 18 and I am 19. For the last year we have been long distance (his family moved four states away, and I moved to college), however it has not been an issue for us keeping our love strong. At the end of this year, when he graduates high school, he is joining the air force. Both sets of our parents love him and I together and are okay with the idea of a young marriage, mainly because they know we are perfect for each other and make each other very happy. We have the thought of engagement and a wedding in our minds but have never said anything to make it one hundred percent.
My question is, in your opinion, should we get married now or wait till after his training.
I am almost finished with my associates degree, and plan on finishing my schooling where ever I move to with him (if that is the case). Either that, or I will finish my bachelors degree at the university I am at now and move with him afterwards.
What do you think would be a better situation?
Thank you so much for your advice, but please, not ridiculing.