When A Good Man Goes To War

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

Demons run, but count the cost

The battle's won, but the child is lost

When a good man goes to war

- River Song, explaining the meaning of the name of Demon's Run base