"Self defence" refers to the actions taken to protect oneself or others from harm or danger. It involves using reasonable force to defend against an attacker or to prevent an imminent threat. Full definition
See my earlier point about neutrality being the best form of self defence for a small country. (nextleft.org)
Basically, the idea is that it is common knowledge nowadays that you can not kill another person, unless you're acting in self defence. (law.stackexchange.com)
Yes, I love self defence classes too as you get the best of both worlds. (zestforever.com)