Germany is trying to win the war with its escalated U-boat campaign. The U-boats have been given carte blanche to attack Allied merchant ships without warning. They are also authorised to attack ships flying neutral flags but suspected of carrying supplies to Allied countries. The Germans hope that the submarine war will reduce Britain to poverty and starvation, forcing it to make peace with Germany
Since the beginning of the escalated campaign in February the Germans have sunk an astonishing 3,844,000 tons of Allied shipping. Holtzendorff, the German navy’s chief of staff, has calculated that sinking 600,000 tons a month would be enough to cripple British trade. The U-boats have achieved these targets, sinking 670,000 tons in June alone, so surely this means that the British will soon be forced to make peace?
Yet the British do not appear to be on the brink of collapse. Holtzendorff appears to have miscalculated. The British have been able to increase domestic food production and through effective rationing are spreading food supplies relatively fairly (far more successfully than is the case in Germany). The U-boat campaign has not scared neutral shipping from the seas. Instead it has reduced the amount imported into the likes of Holland and Denmark for resale to Germany.
Allied countermeasures against the submarines are becoming more effective, with merchant ships increasingly sailing under protection in convoys and US and British destroyers patrolling more aggressively against the U-boats. It is starting to look as though the U-boat campaign is not going to end the war in the next few months. Tacitly recognising that the war will continue, the German navy now orders the construction of more U-boats, which will not be available for use until 1919.
A merchant ship torpedoed (Military History Now: Sea Wolves Unleashed – Germany’s First U-boat War)
A U-boat surfaces (Military History Now: Sea Wolves Unleashed – Germany’s First U-boat War)