Icthar and The Doctor in “Warriors of the Deep”

I will listen to what you say, but I should tell you that the Silurians have long since abandoned the way of mediation.

So it seems. Why? A civilized race like yours waging unprovoked war?

Defensive war, Doctor! There is a distinction. Silurian law forbids any other.

Defensive? There's no such thing. When we last met, your supreme wish was to live at peace with the other inhabitants of this planet. Now why change such an enlightened policy?

Our policy has always been peaceful survival. All that has changed is the means by which it can be achieved.

By actions such as we've seen here?

You forget! Twice we offered the hand of friendship to these ape-descended primitives, and twice we were treacherously attacked, our people slaughtered! It will not happen again.

There can be no alternative to peaceful co-existence.

There is, Doctor! A final solution!

[Realizing what this means] Genocide?! When everything you Silurians hold sacred forbids it?!

We will harm no one. These ape primitives will destroy themselves. We, Doctor, will merely provide the pretext.

You'll trigger the war this base was designed to fight.

Yes. And these human beings will die as they have lived: in a sea of their own blood!