Mencius condemns boasting military skill as a great sin. A benevolent ruler wins universal longing without fierce battles. A punitive campaign means rectifying tyranny; people welcome such righteous forces, so brutal warfare is unnecessary.
Mencius claims no truly just wars occurred in the Spring and Autumn age, though some rulers acted less brutally. Only the Son of Heaven held the right to launch punitive campaigns; equal states had no authority to attack one another.