After engaging in acts of war against another nation, there exists a degree of uncertainty in terms of the enemy's reactions. War inspires an unpredictable psychology and evokes strong emotions that defy systems analysis quantification.
“After engaging in acts of war against another nation, there exists a degree of uncertainty in terms of the enemy's reactions. War inspires an unpredictable psychology and evokes strong emotions that defy systems analysis quantification.”
— H. R. McMaster · Acts