… I have always planned on joining the Air Force but because of recent events (i.e. Syria, gαy marriage, etc.) I am thinking that the military is not what it once was and if I were to go to war would I be justified? …
First and foremost, I recommend that you look for a thread called "First-hand experience in the Military." It may be found in the Catholic Living in the Modern World subforum.
As a former Vietnam combat veteran (drafted!), permit me to say that everyone's advice (save sedetrad's) is good.
Stay far away from the military. It is not a jobs program, no matter what government stooges may call it. Its purpose is to forward the immoral aims of the USA, which is International Jewry's chief client state, by murdering people, most of whom are and have been civilians.* If you think you can live a morally upright life there, you are kidding yourself bigtime.
Service in the military today ought to be considered objectively disordered and gravely sinful. As I wrote in a comment in the thread just mentioned, "I nearly despair of Trads … who in a real sense subvert the very Faith they claim to want to further by speaking anything but ill of service in this country's evil armed forces." I continue to stand by every syllable of that comment.
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* Incidentally, the military was
never what it "once" was!—that is to say, what its sentimental apologists would have one believe. Unlike local and state militias from the late eighteenth and early nineteenth centuries, whose purpose was primarily defense and secondarily an occasional evening out with the boys and away from the ball-and-chain, the US military has been an instrument of aggression since at least the First Seminole War. One is hard put to think of an authentically defensive posture since John Adams called Washington out of retirement to direct the naval campaign against the Barbary States, which were seizing unarmed merchant vessels and kidnapping their wealthy occupants and killing the rest. Swollen-head Marines have been singing about "the shores of Tripoli" ever since!