Aragorn's Reunited Empire: Just a paper dream?

[Raynor]

Aragorn would have build the Gondor state through both diplomacy with some of the former enemies

Originally Posted by The steward and the king

In the days that followed his crowning the King sat on his throne in the Hall of the Kings and pronounced his judgements. And embassies came from many lands and peoples, from the East and the South, and from the borders of Mirkwood, and from Dunland in the west. And the King pardoned the Easterlings that had given themselves up, and sent them away free, and he made peace with the peoples of Harad; and the slaves of Mordor he released and gave to them all the lands about Lake Nurnen to be their own.

and war with others

Originally Posted by Letter #244, concerning criticism of Faramir

Also to be Prince of Ithilien, the greatest noble after Dol Amroth in the revived Numenorean state of Gondor, soon to be of imperial power and prestige, was not a 'market-garden job' as you term it. Until much had been done by the restored King, the P. of Ithilien would be the resident march-warden of Gondor, in its main eastward outpost – and also would have many duties in rehabilitating the lost territory, and clearing it of outlaws and orc-remnants, not to speak of the dreadful vale of Minas Ithil (Morgul). I did not, naturally, go into details about the way in which Aragorn, as King of Gondor, would govern the realm. But it was made clear that there was much fighting, and in the earlier years of A.'s reign expeditions against enemies in the East.

In the letter, Tolkien goes on to say further that Aragorn would govern Gondor as a monarch "with the power of unquestioned decision in debate", but who would also re-establish the Great Council of Gondor, made of Lord of the fiefs and Captains of the Forces, who would be consulted on "debatable matters of importance domestic, or external".