The soldiers have what are described as lewd magazines and pin-ups in their barracks. They remove these early in the film and they are only shown in the background without any real detail up to this point. One of them is forgotten about, however, and a poster is clearly visible of a fully naked woman (exposed breasts etc.) for around 10 seconds until the commanding officer rips this down.
There are two female characters, who are repeatedly seen as objects of desire. When one soldier stays outside to talk to the younger woman another soldier tells his friends that he is keeping her for himself.
Later this couple kiss for a fairly prolonged time (30 seconds or so). The woman says she is going to bed and the man says suggestively that if she's hot she can leave the window open. When he is relieved of his shift he climbs into her room through the window. They briefly kiss before she undoes the top two buttons of her nightgown, which he is visibly flustered about. He takes off his shoes. The scene fades out. Sex is obviously implied but is not shown on-screen and there is no nudity.