The Lord of the Rings: The Return of the King2003

Gandalf the White:
There was no lie in Pippin's eyes. A fool, but an honest fool he remains. He told Sauron nothing of Frodo and the Ring. We've been strangely fortunate. Pippin saw in the Palantír a glimpse of the Enemy's plan. Sauron moves to strike the city of Minas Tirith. His defeat at Helm's Deep showed our Enemy one thing. He knows the Heir of Elendil has come forth. Men are not as weak as he supposed. There is courage still, strength enough perhaps to challenge him. Sauron fears this. He will not risk the Peoples of Middle Earth uniting under one banner. He will raze Minas Tirith to the ground before he sees a King return to the Throne of Men. If the Beacons of Gondor are lit, Rohan must be ready for war.

Théoden:
Tell me, why should we ride to the aid of those who did not come to ours? What do we owe Gondor?

Aragorn:
I will go.

Gandalf the White:
No.

Aragorn:
They must be warned.

Gandalf the White:
They will be. You must come by another road. Follow the River. Look to the Black Ships. Understand this. Things are now in motion that cannot be undone. I ride for Minas Tirith. [Glances at Pippin] And I won't be going alone.