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Having stopped unrestricted submarine warfare after sinking the Lusitania in 1915, Germany resumed the policy on January 31, 1917. The campaign peaked in April 1917, and helped bring the United States into the war.

Text:
U-Bootswirkung im Mittelmeer.
12 Monate uneingeschränkten
U-Bootskrieges auf dem Mittelmeer-Kriegsschauplatz
Alle durch Minen und vor dem 1. Februar 1917 vernichteten Schiffe sind in dieser Karte nicht enthalten.
[symbol] bedeutet ein durch die Tätigkeit unserer U-Boote versenktes Schiff ohne Berücksichtigung seiner Größe.
Die Eintragungen der Schiffe entsprechen dem Versenkungsort.
"Die wichtigste unmitteilbare militärische Ursache der Italienischen Niederlage wird unwidersprchen in dem Mangel an Munition und schweren Kanonen erblickt: den die Unterseeboote haben die Erz- und Kohlenzufuhr unterbunden." - (New York Times, 4.11.17)
Monatsergebnisse der Gesamtversenkungen
Februar, 1917, 785,000 Br.-Reg.-T.
Marz, 890,000
April, 1,100,000
Mai, 870,000
Juni, 1,020,000 Br.-Reg.-T.
Juli, 815,000
August, 810,000
September, 675,000
Oktober, 675,000 Br.-Reg.-T.
November, 610,000
Dezember, 705,000
Januar, 635,000
Insgesamt 9,590,000 Br.-Reg.-T.

Submarine action in the Mediterranean.
Full 12 months
U-Boat War in the Mediterranean theater of war
All ships destroyed by mines or before February 1, 1917 are not included in this map.
[symbol] indicates a ship sunk by the activity of our submarines regardless of its size.
The entries of the vessels meet the Versenkungsort.
"The most important cause of the indescribable Italian military defeat is indisputably due to the lack of ammunition and heavy guns. The submarines have prevented the supply of ore and coal." - (New York Times, 4:11:17)
Monthly breakdown of the total sinkings:
February, 1917, 785,000 imperial tons
March, 890,000
April, 1,100,000
May, 870,000
June, 1,020,000 imperial tons
July, 815,000
August, 810,000
September, 675,000
October, 675,00

Having stopped unrestricted submarine warfare after sinking the Lusitania in 1915, Germany resumed the policy on January 31, 1917. The campaign peaked in April 1917, and helped bring the United States into the war.

Image text

Having stopped unrestricted submarine warfare after sinking the Lusitania in 1915, Germany resumed the policy on January 31, 1917. The campaign peaked in April 1917, and helped bring the United States into the war.



Text:

U-Bootswirkung im Mittelmeer.

12 Monate uneingeschränkten

U-Bootskrieges auf dem Mittelmeer-Kriegsschauplatz

Alle durch Minen und vor dem 1. Februar 1917 vernichteten Schiffe sind in dieser Karte nicht enthalten.

[symbol] bedeutet ein durch die Tätigkeit unserer U-Boote versenktes Schiff ohne Berücksichtigung seiner Größe.

Die Eintragungen der Schiffe entsprechen dem Versenkungsort.

"Die wichtigste unmitteilbare militärische Ursache der Italienischen Niederlage wird unwidersprchen in dem Mangel an Munition und schweren Kanonen erblickt: den die Unterseeboote haben die Erz- und Kohlenzufuhr unterbunden." - (New York Times, 4.11.17)

Monatsergebnisse der Gesamtversenkungen

Februar, 1917, 785,000 Br.-Reg.-T.

Marz, 890,000

April, 1,100,000

Mai, 870,000

Juni, 1,020,000 Br.-Reg.-T.

Juli, 815,000

August, 810,000

September, 675,000

Oktober, 675,000 Br.-Reg.-T.

November, 610,000

Dezember, 705,000

Januar, 635,000

Insgesamt 9,590,000 Br.-Reg.-T.



Submarine action in the Mediterranean.

Full 12 months

U-Boat War in the Mediterranean theater of war

All ships destroyed by mines or before February 1, 1917 are not included in this map.

[symbol] indicates a ship sunk by the activity of our submarines regardless of its size.

The entries of the vessels meet the Versenkungsort.

"The most important cause of the indescribable Italian military defeat is indisputably due to the lack of ammunition and heavy guns. The submarines have prevented the supply of ore and coal." - (New York Times, 4:11:17)

Monthly breakdown of the total sinkings:

February, 1917, 785,000 imperial tons

March, 890,000

April, 1,100,000

May, 870,000

June, 1,020,000 imperial tons

July, 815,000

August, 810,000

September, 675,000

October, 675,00

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