By the treaty of March-April, 1812, Bernadotte gained from Alexander the prospect of acquiring Norway, in return for the aid of Sweden in the forthcoming war against Napoleon.
This was the chief diplomatic success gained by Alexander; for though he came to terms with Turkey two months later (retaining Bessarabia), the treaty was ratified too late to enable him to concentrate all his forces against the Napoleonic host that was now flooding the plains of Prussia.[253] The results of this understanding with the Court of Stockholm were seen in the Czar's note presented at Paris at the close of April.

He required of Napoleon the evacuation of Swedish Pomerania by French troops and a friendly adjustment of Franco-Swedish disputes, the evacuation of Prussia by the French, the reduction of their large garrison at Danzig, and the recognition of Russia's right to trade with neutrals.

If these terms were accorded by France, Alexander was ready to negotiate for an indemnity for the Duke of Oldenburg and a mitigation of the Russian customs dues on French goods.[254] The reception given by Napoleon to these reasonable terms was unpromising.
"You are a gentleman," he exclaimed to Prince Kurakin, "-- and yet you dare to present to me such proposals ?--You are acting as Prussia did before Jena." Alexander had already given up all hope of peace.

A week before that scene, he had left St.Petersburg for the army, knowing full well that Napoleon's cast-iron will might be shivered by a mighty blow, but could never be bent by diplomacy.
On his side, Napoleon sought to overawe his eastern rival by a display of imposing force.

Lord of a dominion that far excelled that of the Czar in material resources, suzerain of seven kingdoms and thirty principalities, he called his allies and vassals about him at Dresden, and gave to the world the last vision of that imperial splendour which dazzled the imagination of men.
It was an idle display.