The article analyzes how a defender determines a balance between protecting an object (passive defense) and striking preventively against an attacker seeking to destroy the object (active defense). The attacker analogously determines a balance between attacking and protecting against the...

The paper considers a situation when a terrorist with N attack facilities allocates its resource between attacking an object and protecting the facilities that will be used in the attack. A government allocates its resource between protecting the object passively and striking actively and...