+Defense is the act of guarding against harm or attack. It encompasses methods of [Security](/wiki/security) and the measured application of [Force](/wiki/force) to deter or repel threats, aiming to preserve integrity and peace. From an individual's space to a nation's borders, defense is a fundamental instinct and organized endeavor.
+## See also
+- [Military](/wiki/military)
+- [Protection](/wiki/protection)
+- [Strategy](/wiki/strategy)
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