Thor Damar wrote:
The Klingons that we see in TOS are a cunning expansionist Empire locked into a Cold War with the UFP and every time we see the Klingons they are matching wits with starfleet on the front lines of this war.
This is why I enjoyed DS9's Rules Of Engagement. The Klingon prosecutor, Ch'Pok, represented the return of the wily Klingon. He was a classic in the original series tradition.