These are the terms. The rabble of Gondor and it's deluded allies shall withdraw at once beyond the Anduin, first taking oaths never again to assail Sauron the Great in arms, open or secret. All lands East of the Anduin shall be Sauron's forever, solely. West of the Anduin as far as the Misty Mountains and the Gap of Rohan shall be tributary to Mordor, and men there shall bear no weapons, but have leave to govern their own affairs. But they shall help to rebuild Isengard which they have wantonly destroyed, and that shall be Sauron's, and there his lieutenant shall dwell: not Saruman, but one more worthy of trust.
Seems reasonable to me. Why didn’t they simply make peace with Sauron? Why did Aragorn, a war criminal, insist on fighting to the last Gondorian?