So, after my initial thought that this general was nuts, I thought about his stance. It makes sense. Sorry, but if you volunteered, you put country first. If that means holding off on getting pregnant, so be it. And with reports about our troops already stressed due to multiple, extended tours, making an effort to reduce any other causes of stress just makes sense.
Yes, threatening court marshal is a bit much. However, if he is serious about preventing pregnancies, then I hope he is pushing for sex education among the enlisted. Hell, remembering some of the officers I had to work under, I suspect some of today's officers need it even more. Especially those of the holy crusader ilk who's sex education was probably of the abstinence based variety.
Oh, and those thinking this maybe unconstitutional. Wrong. It was one of the things made clear upon enlistment; you have no constitutional rights. All rights afforded service members are covered under the Military Code of Justice.
Edited to clear up a major mistake.