Yes, Minister, Series Three (1982)

Sir Humphrey:
[talking about nuclear fallout shelters] Well, you have the weapons; you must have the shelters.

Hacker:
I sometimes wonder why we need the weapons.

Sir Humphrey:
Minister! You're not a unilateralist?

Hacker:
I sometimes wonder, you know.

Sir Humphrey:
Well, then, you must resign from the government!

Hacker:
Ah, no, no, no, no, no, no, no. I'm not that unilateralist! Anyway, the Americans will always protect us from the Russians, won't they?

Sir Humphrey:
Russians? Who's talking about the Russians?

Hacker:
Well, the independent deterrent.

Sir Humphrey:
It's to protect us against the French!

Hacker:
The French?! But that's astounding!

Sir Humphrey:
Why?

Hacker:
Well they're our allies, our partners.

Sir Humphrey:
Well, they are now, but they've been our enemies for the most of the past 900 years. If they've got the bomb, we must have the bomb!

Hacker:
If it's for the French, of course, that's different. Makes a lot of sense.

Sir Humphrey:
Yes. Can't trust the Frogs.

Hacker:
You can say that again!