Demons run when a good man goes to war
Night will fall and drown the sun
When a good man goes to war
Friendship dies and true love lies
Night will fall and the dark will rise
When a good man goes to war
Demon’s Run, but count the cost
The battle’s won but the child is lost

Nothing good happens when a good man goes to war

But I also like the saying “If you want peace prepare for war”. War is not the right choice, but it’s seldom yours.