There was a long consideration in writing the entries about martial arts and meditation. Meditation has a solid amount of scientific evidence to show that it has numerous physical, emotional and cognitive benefits. While we can draw connections between practitioners of martial arts and other similar benefits it may simply be due to increased exercise, focus, discipline or even meditation done during the course of their studies. The correlation is less clear.
Either way in the spirit of preparedness for any situation it would be prudent to teach a soft system of martial arts [note: by soft I mean a martial art that utilises technique over brute force and yielding rather than opposing forces] like Aikido which can be more defensive in nature and also teaches practitioners how to fall without hurting themselves or restrain someone who is being violent.
Martial arts teaches discipline, allows for purposeful exercise, aids balance and builds self-confidence. If we take a holistic approach to the individual members of the community this is a vital facet of that approach.