The two German forts which commanded the sea approaches were Huit-chien-huk and Tscha-nui-va. The first was equipped with two twenty-four-centimeter guns and three fifteen-centimeter guns, while the latter's equipment consisted of two twenty-one-centimeter guns which had been taken from the Chinese Taku forts in 1900. The German garrison at Tsingtau at the opening of the war, knowing that their surrender was inevitable, had made all plans to keep as far as possible all trophies of war from falling into the enemy's hands after surrender. The result was that early on the morning of the 7th, after the Japanese infantry had gained the redoubt walls, all preparations were made by the garrison for destroying the guns. The breech-block of each was wound with nitro-glycerine and dynamite was placed in the cannons up to the muzzle edge. The white flag was the signal. A few minutes later, when the Japanese forces swarmed the forts, they found the place a mass of wreckage. Big twenty-four-centimeter guns were split in two as evenly and neatly as if they had been cut by a jack-knife, while one hundred or more yards distant could be found all that remained of the breech-block. The four twenty-eight-centimeter mortars on Iltis had been dynamited and just a mass of twisted steel and splintered plates remained. On Bismarck and Moltke Forts, many of the guns had been backed in against the sandbag walls and dynamited on their carriages. The discharge had left the place scattered with the broken pieces of the carriages and split sandbags. The guns in the majority of cases had fallen down to the foot of the casemate walls. The explosions of the dynamite also appeared to have wrecked adjacent walls, for the concrete work about the gun-stands seemed to be so much shale. Exposed to sight were the steel pipes and wire used in the construction of the forts, all twisted and broken. This desire to keep trophies of war from the hands of the enemy was not confined alone to guns. From the various post-offices German officials gathered the colony's issue of postage stamps and all were burned. Men had evidently been detailed to handle the storehouses, for all about them I found large cans of corned beef, sausages, milk, saurkraut and German delicacies opened and lying in heaps, their contents untouched. All valuable papers in the vaults of Government buildings that contained military secrets or maps of fortifications throughout the Far East, were also made way with; in fact the German garrison left little that the Japanese could boast about, except the city of Tsingtau itself. As officially given out by the War Office, the Japanese forces had a total of 142 guns on the firing line. They consisted of six 28-centimeter howitzers, 72 other siege guns of 15-and 24-centimeters, 18 mountain guns, 36 field pieces, and eight 4.7 and 6-inch guns of the marine detachment.