(The Klingons arrive, and their leader hits Kirk with his disruptor, knocking him down.)
KANG: You attacked my ship! Four hundred of my crew dead. Kirk, my ship is disabled. I claim yours. You are now prisoners of the Klingon Empire against which you have committed a wanton act of war!
(And a weird swirl of light hangs in the air a little way away. The Federation landing party are disarmed.)
KANG: For three years, the Federation and the Klingon Empire have been at peace. A treaty we have honoured to the letter.