§ 249. Maritime sovereignty found expression in maritime ceremonials at least. Such State as claimed sovereignty over a part of the Open Sea required foreign vessels navigating on that part to honour its flag[485] as a symbol of recognition of its sovereignty. So late as 1805 the British Admiralty Regulations contained an order[486] to the effect that "when any of His Majesty's ships shall meet with the ships of any foreign Power within His Majesty's Seas (which extend to Cape Finisterre), it is expected that the said foreign ships do strike their topsail and take in their flag, in acknowledgment of His Majesty's sovereignty in those seas; and if any do resist, all flag officers and commanders are to use their utmost endeavours to compel them thereto, and not suffer any dishonour to be done to His Majesty."
[485] See Fulton, "The Sovereignty of the Seas" (1911), pp. 38 and 204-208.
[486] Quoted by Hall, § 40.
But apart from maritime ceremonials maritime sovereignty found expression in the levying of tolls from foreign ships, in the interdiction of fisheries to foreigners, and in the control or even the prohibition of foreign navigation. Thus, Portugal and Spain attempted, after the discovery of America, to keep foreign vessels altogether out of the seas over which they claimed sovereignty. The magnitude of this claim created an opposition to the very existence of such rights. English, French, and Dutch explorers and traders navigated on the Indian Ocean and the Pacific in spite of the Spanish and Portuguese interdictions. And when, in 1580, the Spanish ambassador Mendoza lodged a complaint with Queen Elizabeth against Drake for having made his famous voyage to the Pacific, Elizabeth answered that vessels of all nations could navigate on the Pacific, since the use of the sea and the air is common to all, and that no title to the ocean can belong to any nation, since neither nature nor regard for the public use permits any possession of the ocean.[487]
[487] See Walker, "History," I. p. 161. It is obvious that this attitude of Queen Elizabeth was in no way the outcome of the conviction that really no State could claim sovereignty over a part of the Open Sea. For she herself did not think of dropping the British claims to sovereignty over the "British Seas." Her arguments against the Spanish claims were made in the interest of the growing commerce and navigation of England, and any one daring to apply the same arguments against England's claims would have incurred her royal displeasure.
Grotius's Attack on Maritime Sovereignty.
§ 250. Queen Elizabeth's attitude was the germ out of which grew gradually the present freedom of the Open Sea. Twenty-nine years after her answer to Mendoza, in 1609, appeared Grotius's short treatise[488] "Mare liberum." The intention of Grotius was to show that the Dutch had a right of navigation and commerce with the Indies in spite of the Portuguese interdictions. He contends that the sea cannot be State property, because it cannot really be taken into possession through occupation,[489] and that consequently the sea is by nature free from the sovereignty of any State.[490] The attack of Grotius was met by several authors of different nations. Gentilis defends Spanish and English claims in his "Advocatio Hispanica," which appeared in 1613. Likewise, in 1613 William Welwood defends the English claims in his book, "De dominio maris." John Selden wrote his "Mare Clausum sive de dominio maris" in 1618, but it was not printed until 1635. Sir John Burroughs published in 1653 his book, "The Sovereignty of the British Seas proved by Records, History, and the Municipal Laws of this Kingdom." And in defence of the claims of the Republic of Venice Paolo Sarpi published in 1676 his book "Del dominio del mare Adriatico." The most important of these books defending maritime sovereignty is that of Selden. King Charles I., by whose command Selden's "Mare Clausum" was printed in 1635, was so much impressed by it that he instructed in 1629 his ambassador in the Netherlands to complain of the audacity of Grotius and to request that the author of the "Mare liberum" should be punished.[491]
[488] Its full title is: "Mare liberum, seu de jure quod Batavis competit ad Indicana commercia Dissertatio," and it is now proved that this short treatise is only chapter 12 of another work of Grotius, "De jure praedae," which was found in manuscript in 1864 and published in 1868. See above, § [53].
[490] Grotius was by no means the first author who defended the freedom of the sea. See Nys, "Les origines du droit international," pp. 381 and 382.