If, then, the interest of British commerce requires to exclude the Czar from the Baltic, the interest of our State ought to be no less a spur to quicken us to that attempt. By the interest of our State I would be understood to mean neither the party measures of a Ministry, nor any foreign motives of a Court, but precisely what is, and ever must be, the immediate concern, either for the safety, ease, dignity, or emolument of the Crown, as well as the common weal of Great Britain. With respect to the Baltic, it has "from the earliest period of our naval power" always been considered a fundamental interest of our State: first, to prevent the rise there of any new maritime Power; and, secondly, to maintain the balance of power between Denmark and Sweden.

"One instance of the wisdom and foresight of our _then truly British statesmen_ is the peace at Stalboa, in the year 1617. James the First was the mediator of that treaty, by which the Muscovite was obliged to give up all the provinces which he then was possessed of in the Baltic, and to be barely an inland Power on this side of Europe."

Secret Diplomatic History of The Eighteenth Century — Part 57

The same policy of preventing a new maritime Power from starting in the Baltic was acted upon by Sweden and Denmark.

Secret Diplomatic History of The Eighteenth Century — Part 57

"Who knows not that the Emperor's attempt to get a seaport in Pomerania weighed no less with the great Gustavus than any other motive for carrying his arms even into the bowels of the house of Austria? What befel, at the times of Charles Gustavus, the crown of Poland itself, who, besides it being in those days by far the mightiest of any of the northern Powers, had then a long stretch of coast on, and some ports in, the Baltic? The Danes, though then in alliance with Poland, would never allow them, even for their assistance against the Swedes, to have a fleet in the Baltic, but destroyed the Polish ships wherever they could meet them."

Secret Diplomatic History of The Eighteenth Century — Part 57

As to the maintenance of the balance of power between the established maritime States of the Baltic, the tradition of British policy is no less clear. "When the Swedish power gave us some uneasiness there by threatening to crush Denmark," the honour of our country was kept up by retrieving the then inequality of the balance of power.

The Commonwealth of England sent in a squadron to the Baltic which brought on the treaty of Roskild (1658), afterwards confirmed at Copenhagen (1660). The fire of straw kindled by the Danes in the times of King William III. was as speedily quenched by George Rock in the treaty of Copenhagen.