During the positional war during the First World War and the resulting trench warfare, many of the insufficiently equipped soldiers developed auxiliary weapons, which were manufactured in field forges and workshops on and behind the front. In the course of the battles, however, it became clear that the soldiers' equipment and armament did not meet the requirements of this particular fighting style. In 1915 Boker was therefore commissioned by the Ministry of War to develop a compact combat knife that was ideally suited for precisely this purpose.The true-to-the-original Boker Trench Knife also has a stainless steel blade made of C75. This carbon steel with an enormous edge retention requires appropriate care today as it did then. The massive stainless steel crossguard, the old official tang stamp on the blade, the local ribbed wood handle and the authentic sheath made of high-quality leather are also part of the original equipment. The knives are marked with a serial number.