Could an earlier First World War U-boat campaign force Britain to negotiate?

Could the First World War have lasted long enough for U-boats to force Britain to discuss terms?

It would require an earlier, sustained commitment to unrestricted warfare and more submarines than Germany then possessed.

A longer war alone would not solve Germany's submarine problem. The proposed route requires the Kaiser to commit to unrestricted warfare earlier and keep that policy in place despite its consequences. Germany would also need enough submarines to sustain the campaign. The boats available later in the war did not exist in comparable numbers at its beginning, leaving the proposal caught between earlier commitment and inadequate early strength.