I see that this video is making the rounds again:
It’s being called one of the “Worst Recruitings Ads Ever”. I’m not so sure of that. To macho American eyes, the dancing sailors look ridiculous. However, these ads are for a Japanese audience, to whom military defense and entertainment apparently are a natural combination, if anime is any evidence. Sakura Wars, for instance, combines steampunk mecha with Takarazuka musicals, and in Idol Defense Force Hummingbird, the air force is a branch of the music industry. In this context, this commercial makes perfect sense.