According to the Daily Mail:
The Royal Navy has banned posters of glamour models so as not to offend women sailors.
New rules have been brought in after women complained of feeling intimidated by the soft porn.
Sailors can no longer pin up nude pictures of their wives and girlfriends on board surface ships, submarines and at shore bases.
Did sailors actually do this? Put up nude pictures of their wives and girlfriends? Sure, they’d put up nude pics of women, e.g. glamour models. And they’d put up pics of their wives and girlfriends. But nude pics of their wives and girlfriends? I doubt it.