wow people sure were less shy back then.

It's not a matter of being shy - military men are more comfortable around their "brothers in arms" considering all that they go through. In boot camp/basic training for instance, the showers are community. There shower room has maybe eight or so shower heads in them and the guys don't get enough time to shower with some privacy. You end up being more concerned about washing up and staying clean then whoever may be watching.

When I was deployed to Iraq, we didn't have any actual shower facilities in the field. Especially out of the question if you were at a FOB (Forward Operating Base) or outpost - where you are really away from the massive bases. Our shower consisted of heating up water in a giant container and wiping down that way. There was very little privacy - not that anyone really cared or ogled since we all considered one another to be almost like brothers.