Self-defense

codified systems and traditions of combat practices

thumb|Demonstration of a jujutsu defense against a knife attack in [[Berlin, Germany (1924).]] Self-defense (self-defence primarily in Commonwealth English) is a countermeasure that involves defending the health and well-being of oneself from harm. The use of the right of self-defense as a legal justification for the use of force in times of danger is available in many jurisdictions.

non-lethal chemical weapon

right for persons to use reasonable force or defensive force, for the purpose of defending one's own life or the lives of others

2014 police killing of a black man in Ferguson, Missouri, United States

action or movement due to the application of a sudden unexpected stimulus

useful items carried on person every day

legal doctrine regarding the defensive use of force within one's abode

exercising authority over persons or property by means of physical force

1992 fatal shooting of Yoshihiro Hattori

legal principle of international law, according to which a State attacked by another entity has the right to defend itself from such attacks

gay gun rights organization in the United States and Canada

force that a person knows would create a substantial risk of causing, death or serious bodily harm or injury

Non-governmental organizations

pattern of signs and symptoms displayed by a woman who has suffered persistent intimate partner violence

Spray to deter charging bears

concept in international law