I was active duty for 11 yrs married to active duty, now I'm a spouse. I had a combat related job in the AF. I'm not saying you're freaking out, but if you're constantly thinking about it, it will drain you. He is enjoying it, so why don't you enjo it as well. My wife was initially worried about it, but then she saw how much fun I was having and the crew I was hanging out with and she began to realize, we viewed it as another job and loved it. Life is less stressful that way. That's not saying there won't be times you shouldn't be nervous, that's a no brainer.