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Self-defence is the act of defending oneself, one's property or the well-being of another from physical harm.^[1] While the term may define any form of personal defence, it is strongly associated with civilian hand-to-hand defence techniques. Self-defence defines a civilian activity as opposed to Hand-to-hand combat in a military context.

Contents 1 Physical Self-Defence 1.1 Unarmed 1.2 Armed 2 Other Forms of Self-Defence 2.1 Personal Alarms 3 National self-defence 4 References 5 See also

Many styles of martial arts, usually Asian styles, such as Jujutsu, Karate, Taekwondo,Wushu and Ninjitsu are practiced for self-defence. Some styles train almost exclusively for self-defence (Wing Chun, Krav Maga), putting emphasis on the bodies' weakest pressure-points ^[2]. Others still, are practiced for other reasons and not intended for self-defence at all (eg Tai-Chi, Tae Bo). However, some martial arts that are practiced primarily for sport, such as boxing or judo can be effectively applied for self-defence.

In order to assist people in learning self-defence techniques, dojos and self-learning video's have sprung up. Self-defence courses are intended to give the layperson some instruction in self-defence in a short period of time.

See also: Castle Doctrine

In some countries, it is legal to carry weapons (for example knives, firearms or pepper spray) on one's person for purposes of self-defence. In other countries this may be illegal or may require license. Limitations on the use of weapons for personal defence are a source of controversy in some countries, pitting self-defence rights against efforts to combat violent crime via restricting access to common weapons.

Everyday objects, such as shivs or body spray, can also be used as improvised weapons for self-defence, however they are not likely to be as effective as purpose built weapons.

Personal alarms are a way to practice passive self-defence. A personal alarm is a small, hand-held device that emits strong, loud, high pitched sounds to deter attackers because the noise will draw the attention of passersby. Different models are available, including key chain alarms and child safety alarms designed to help parents keep kids safe. Child alarms often function as locators or device alarms such as triggering an alert when a swimming pool is in use to help prevent dangerous situations in addition to being a deterrant against would-be aggressors.^[3]

Pepper spray and personal tasers are other personal alarm options that can be used in self-defence in a less passive way, but they are meant as deterrant and emergency measures rather than assault items.

In politics, the concept of national or mutual self-defence to counter a war of aggression refers to a defensive war organised by the state and is one possible criterion in the just war theory.

• Hand to hand combat
• Martial arts
• Carrying concealed weapon
• Improvised weapon
• RBSD (Reality Based Self Defense)
• Self Defence Force
• Right of self-defense legal principle