with such grave concern, that it feels it to be its privilege, and, indeed, its duty, in the circumstances to request the Imperial German Government to consider before action is taken the critical situation in respect of the relation between this country and Germany which might arise were the German naval forces, in carrying out the policy foreshadowed in the Admiralty's proclamation, to destroy any merchant vessel of the United States or cause the death of American citizens:—To declare and exercise a right to attack and destroy any vessel entering a prescribed area of the high seas without first certainly determining its belligerent nationality and the contraband character of its cargo would be an act so unprecedented in naval warfare that this Government is reluctant to believe that the Imperial Government of Germany in this case contemplates it as possible.

After stating that the destruction of American ships or American lives on the high seas would be difficult to reconcile with the friendly relations existing between the two Governments, the note adds that the United States "would be constrained to hold the Imperial Government of Germany to a strict accountability for such acts of their naval authorities, and to take any steps it might feel necessary to take to safeguard American lives and property and to secure to American citizens the full enjoyment of their acknowledged rights on the high seas."

It is not within the province of this book to go in detail into the diplomatic history of the submarine controversy between Germany and the United States. Suffice it to say, therefore, that from the very beginning the controversy held many possibilities of the disastrous ending which finally came to pass when diplomatic relations were broken off between the two countries on February 3, 1917, and a state of war was declared by President Wilson's proclamation of April 6, 1917.

The period between Germany's first War Zone Declaration and the President's proclamation—two months and three days more than two years—was crowded with incidents in which submarines and submarine warfare held the centre of the stage. It would be impossible within the compass of this story to give a complete survey of all the boats that were sunk and of all the lives that were lost. Nor would it be possible to recount all the deeds of heroism which this new warfare occasioned. Belligerents and neutrals alike were affected. American ships suffered, perhaps, to a lesser degree, than those of other neutrals, partly because of the determined stand taken by the United States Government. On May 1, 1915, the first American steamer, the Gulflight, was sunk. Six days later the world was shocked by the news that the Lusitania, one of the biggest British passenger liners, had been torpedoed without warning on May 7, 1915 and had been sunk with a loss of 1198 lives, of whom 124 were American citizens. Before this nation was goaded into war, more than 200 Americans were slain.

Notes were again exchanged between the two Governments. Though the German government at that time showed an inclination to abandon its position in the submarine controversy under certain conditions, sinkings of passenger and freight steamers without warning continued. All attempts on the part of the United States Government to come to an equitable understanding with Germany failed on account of the latter's refusal to give up submarine warfare, or at least those features of it which, though considered illegal and inhuman by the United States, seemed to be considered most essential by Germany.

Then came the German note of January 31, 1917, stating that "from February 1, 1917, sea traffic will be stopped with every available weapon and without further notice" in certain minutely described "prohibited zones around Great Britain, France, Italy, and in the Eastern Mediterranean."

The total tonnage sunk by German submarines from the beginning of the war up to February 1, 1917, has been given by British sources as over three million tons, while German authorities claimed four million. The result of the German edict for unrestricted submarine warfare has been rather appalling, even if it fell far short of German prophesies and hopes. During the first two weeks of February a total of ninety-seven ships with a tonnage of about 210,000 tons were sent to the bottom of the sea. Since then the German submarines have taken an even heavier toll. It has, however, become next to impossible, due to the restrictions of censorship, to compute any accurate figures for later totals, though it has become known from time to time that the Allied as well as the neutral losses have been very much higher during the five months of February to July, 1917 than during any other five months.

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