Re. A soldiers motivation

I think the people back than and nowdays join the armies for the same reason in America. It's not like Korea which is required by law for men to join th army. U.S. citizens join the army because of peer pressure, money, adventure, fame, loyalty, and all the things like the men back in the civil war. What's more is that nowdays they give so much benefits such as discounts for the soldiers, citizenship and green cards, and other benefits. And now they house you, feed you, and get you in shape. Only bad things are that you'll be separated from the people you were close to. But if there was a war, I'll join so that I protect the people that I'm close to.