Question: What unofficial ceasefires along the Western Front of World War I were described by Sir Edward Hulse in letters published posthumously?
Sentence (from "Sir Edward Hulse, 7th Baronet"): Sir Edward Hamilton Westrow Hulse, 7th Baronet (31 August 1889 – 12 March 1915) was an officer in the British Army during the First World War.
Relevant evidence: No