I will point out, 40, that I quoted the time period of 7 years -- and I did not state it as an absolute -- because it was already posted in a number of e-mails, it represents the earliest legitimate terminal date that would not cost us a rep hit, and it approximates the amount of time necessary to achieve the goals you describe.
Other than that, I would expect to pursue the war with the same rationales and objectives covered in your letter.
I do not believe in setting a fixed length of time for a campaign, but I also think that allowing wars to drag on indefinitely is bad policy. Unless there is consensus for a domination victory as our goal, let us get this war over with and switch to Republic or Democracy. We can build up our infantry strength to an appropriate level and work on an economic and scientific infrastructure that will be competitive with the Persians and Chinese.
To that end, possibly CivGeneral can tell us what he things can be done in 7, 10, 12, or 20 turns. And how much it will cost us.