File No. 763.72111/4443

The German Ambassador ( Bernstorff ) to the Secretary of State

My Dear Mr. Secretary: Under instructions of my Government I beg to transmit to you the enclosed memorandum, concerning the new offensive armament of the merchant vessels of our enemies. I am further directed by my Government to discuss this matter with you and to add to the memorandum that it, of course, does not cancel the pledges given by my Government in the note of May 4, 1916.1

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I should be very much obliged to you for an appointment as soon as you have been able to study a translation of the enclosed memorandum and are prepared to discuss it with me.

I further beg to enclose a cipher message for the Foreign Office in Berlin,1 which refers to the above-mentioned question and to your note of December 18 last concerning peace terms.2 I should be very grateful for kind transmission to Berlin.

With many thanks in advance, I remain [etc.]

J. Bernstorff
[Enclosure—Translation]

Memorandum of the German Government Concerning Defensively Armed Enemy Merchant Ships

The German Government, in its memorandum of February 8, 1916,3 respecting the treatment of armed merchant ships, adduced a number of arguments for no longer considering merchantmen armed by enemy powers as peaceful vessels of commerce but regarding them as belligerents. Evidence in support of its position has largely increased since that time.

As may be seen from numerous press reports and parliamentary proceedings in enemy countries the number of merchant ships armed with heavy guns has grown considerably larger in the course of the year 1916. The limit of the evolution was placed by responsible statesmen, of those countries, such, as Lord Crewe and Admiral Lacaze, at the arming of all merchant vessels. More particulars will be found in the enclosed resolutions of a conference held at London on December 10, by shipping interests with the assistance of Government representatives. Public opinion in enemy countries has long demanded that guns be mounted at the bow of merchant ships also; as a matter of fact, the use of bow guns has already been established by German naval craft in the Mediterranean.

That the armament of merchant vessels is not intended for defense only but for attack on the German submarines engaged in cruiser warfare is shown by a number of indisputable facts. The secret order of the British Government published with the German memorandum of February 8, 1916, may be here called to mind. In the meanwhile secret admiralty orders, which fully confirm their aggressive character, found on French and Italian merchant vessels, fell into the hands of the German naval forces that captured them. Thus were found on the French merchant vessel Marie Thérèse on October [Page 84] 29 of this year, confidential instructions of the French Naval Staff, in which the following order is given, among others:

[In French] Open fire as soon as the submarine is within range.

Like directions are given in the secret instructions found on the S. S. Citta di Messina on July 31 of last year:

[In Italian] If a vessel sights a submarine forward and quite near, either below or in the act of coming to the surface, the best maneuver to make is resolutely to steer for it. By so doing it will either strike the submarine and sink it or at least, as has happened in previous cases, kill all or a part of the crew by hurling them against the sides; or it will compel the submarine to submerge and come up abaft, which is a very advantageous position for it. Thereafter it will be necessary to keep close watch astern and to flee at full speed, trying to keep the submarine directly astern if the sea is smooth or not sufficiently rough to prevent the submarine from firing to good effect, if taken in front.

In addition the British Government offered through Lord Crewe, on November 15 of last year, in the House of Lords the following explanation of the orders issued by it, which excludes every doubt:

[In English] The German submarine is an enemy which it is permissible and proper to destroy, if you can, at sight.

This aggressive intent of enemy merchant vessels has become clearly apparent to the German naval authorities. Cases of merchant vessels which, without even being attacked, assume an aggressive attitude toward German submarines, are increasing. Evidence of the carrying out of secret orders has recently been produced; thus the French steamer Mississippi on November 8 of this year opened artillery fire on a German submarine passing by a long way off that had made no move whatever to attack and even had never intended to stop her; likewise, on December 4 of this year, the armed English steamer Caledonia attempted to ram a German submarine although here again there had been no intention, let alone any preparation, to attack on the part of the Germans; again in November, in the English Channel alone, there were recorded three attacks with artillery by-unknown enemy steamers on German submarines which had not made the slightest move against the steamers, while six such occurrences took place in the Mediterranean in the past few months.

In this condition of things enemy merchant ships can not in particular cases claim treatment according to the rules of ordinary cruiser warfare; they have rather assumed the character of belligerents under the principles announced by the Government of the United States in its memorandum of March 25, 1916, concerning the status of armed merchant vessels.1

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The American Government proceeds from the principle that the vessel in neutral waters, as well as on the high seas, is to be regarded and treated as a warship when, among other things, it is under commission or orders of a belligerent state to engage in attacks. To be sure the American Government presupposes that the character of a belligerent on the high seas is not established on presumption alone but only on conclusive evidence; this conclusive evidence, however, is so abundant that it leaves no room for doubt. While the American memorandum lays stress on the point that the presence of armament on a merchant vessel does not by itself afford sufficient ground for presuming her to be a war vessel, the German Government ventures to point out that the belligerent character of the enemy merchant vessels now armed is denoted by other weighty circumstances besides the armament itself, among which the above cited instructions of the enemy governments and the actual attacks unexpectedly delivered on German submarines stand foremost.

Further, the American memorandum only considers government commissions to attack as existing when they are attended with a threat to punish failure to attack and with a grant of prize money when the attack is made. Here again the presumptions are proved to exist. For captains who failed to carry out their orders to sink German U-boats, although opportunity offered to do so, are punished in England. The Daily Chronicle reports, as early as the 8th of September, 1915, that Ernest Alfred Sheldon, of the Royal Naval Reserve, captain of an armed merchant ship, was dismissed from the Navy by a sentence of the court martial at Devonport for not attacking a German U-boat. It is further known, from the proceedings of the English Parliament, that for the sinking of, or effort to sink, German submarines not only have rewards been offered by the state, but that claims for such rewards have been examined by government organs and that the reward is given only when the said examination proves satisfactory to the government. Rewards are granted in various forms; they consist mainly of money, therefore resembling prize money, or again in awarding a gold watch or conferring distinction in the granting of a military officer’s rank. To all this is added that the men detailed from the English Navy or Naval Reserve to man the guns on English merchant vessels, on which they are regularly placed, do not lose their military character and their subjection to the disciplinary and punitive power of the naval authorities through being under orders on a merchant vessel, and so they are, as before, part of the British naval forces. Ships so armed, manned, and directed are no longer, as the American memorandum requires them to be in order to have their peaceful character recognized, simply armed for self-defense; they rather render, in the [Page 86] manner they are instructed to do, the same services against German submarines as the war vessels detailed for antisubmarine service, and the circumstance that they are at the same time doing commercial service does not make any difference as to their being treated like belligerents by German submarines.

Finally, the American memorandum goes on to say that a warship may properly exercise force to compel a merchant vessel to surrender, if the merchant vessel either offers resistance after a summons or, before the summons, uses its armament to keep the enemy at a distance. It admits, in this connection, the merchant vessel’s right to resort to self-defense as soon as it is certain of attack by an enemy warship, as otherwise the exercise of the right would be so restricted as to be made ineffectual; exactly the same grounds support the position that a warship that is entitled to exercise the right of capture may use force when certain of attack by an armed enemy merchant vessel.

The German Government has drawn from the evidence herein above communicated the conclusion, in accord with the American memorandum, that armed merchant vessels of its adversaries in this war are to be treated as belligerents. In this it is fully convinced that it is acting on the same grounds as the American Government took in Secretary Lansing’s note of January 18, 1916, to the English Ambassador;1 for in that note the American Government concurs in the view that under the present conditions of U-boat warfare any armament of a merchant ship appears to have the character of armament for aggression, for the mounting of large guns on merchant ships could only be explained by an intention to place the merchant vessel at an advantage over the U-boat and thereby prevent warning and searching by the latter.

[Subenclosure]

Resolutions of a Conference Held at London, December 10, 1916, by Shipping Interests of the Allies with the Assistance of Government Representatives

Conference held at Foreign Office, London, on December 10, in which Jellicoe, Balfour, Carson, Maclay, Cecil, Stanley, representatives of English, Scotch, and Canadian shipowners as well as two representatives of France, Russia, Italy participated, agreed that all merchant ships are to be armed as follows:

1. British steamers.

  • Up to 1,200 tons and 1,000 h. p. with two 2.24 Vickers-Maxim guns;
  • From 1,200 to 5,000 tons and 6,000 h. p., two 4.0 Vickers guns, one 2.24 Vickers-Maxim gun;
  • From 5,000 to 10,000 tons and 15,000 h. p., one 6.0 Armstrong, two 4.0 Vickers guns;
  • Above 10,000 tons and 15,000 h. p., two 6.0 Armstrong and two 4.0 Armstrong guns (figures in English inches).
  • Guns crews to consist of naval-artillery men with one, two, or three officers according to requirement.

2. French ships.

  • Up to 1,200 tons and 1,000 h. p., two 3.7 automatic Creusot guns;
  • From 1,200 to 5,000 tons and 6,000 h. p., two 4.7 and one 3.7 automatic Creusot guns;
  • From 5,000 to 10,000 tons and 15,000 h. p., one 15.0 and two 4.7 Creusot guns;
  • Above 10,000 tons, two 15.0 and two 4.7 Creusot guns (figures in centimeters).

3. Russian ships.

  • Up to 1,200 tons and 1,000 h. p., two 1.85 inch Vickers guns;
  • From 1,200 to 5,000 tons and 6,000 h. p., two 7.5 centimeter and one 3.7 Creusot guns;
  • Above 5,000 tons, two 15.0 and two 7.5 Creusot guns.

4. Italian ships.

  • Up to 1,200 tons and 1,000 h. p., two 5.7 Terni guns;
  • From 1,200 to 5,000 tons and 6,000 h. p., two 7.6 and one 5.7 Terni guns;
  • Above 5,000 tons, two 12.0 and two 7.6 Terni guns (figures in centimeters).
  • The same regulations for guns, crews, and officers apply as for British ships.