Defense refers to the action of protecting or shielding oneself, a group, or a structure from harm, attack, or injury. In military context, it encompasses strategies, tactics, and measures taken to protect a nation or entity from external aggression or threats. This can involve the use of armed forces, fortifications, and intelligence to deter or respond to attacks.
In a broader sense, defense can also pertain to legal contexts, where it refers to the arguments and evidence presented by a party to counter allegations or accusations in a court of law. This may include defenses against criminal charges or civil suits.
Overall, defense embodies the concept of safeguarding against adversities, whether they be physical threats, legal challenges, or other forms of aggression, emphasizing proactive measures taken to maintain security and integrity.