Right of self-defense

The right of self-defense (also called, when it applies to the defense of another, alter ego defense, defense of others, defense of a third person) is the right for people to use reasonable force or defensive force, for the purpose of defending one's own life (self-defense) or the lives of others, including --in certain circumstances-- the use of deadly force.

Question: do i have the right to defend myself
Answer: yes