Problem: your missiles aren't accurate enough to actually destroy the capitalist aggressors where they live.

Solution: 50 megatons means never having to say you're sorry.

Bonus points to the producers for getting one of those guys with the ridiculous British sing-song delivery style (is there a school somewhere in Cambridge that teaches this?) Also includes a nifty "now-you-see-it, now-you-don't" graphic showing what something this big would've done to metropolitan London.