Aaah. They do say that you should try to take some the night before you think you're going to start your period, to get it into your system, and stop the cramps from really getting started, if you know what I mean. But I can never predict when mine's going to start, and I don't like just taking pills when I don't need to, so I sympathise.

According to this list, there is a division called the Royal Marines Commandos, so it might be the same thing. From what I remember the advert bangs on about trusting your 'brothers', and according to that page "The SRR (Special Reconnaisance Regiment) is the only UK special forces unit to recruit women". So it looks like women can't be in the commandos. I don't know why.