Thus ended the Belgian adventure of the Naval Air Service. It had been good while it lasted. If a force of five thousand skilled and fit men, with armoured cars and aeroplanes, had been available for these operations, the German communications might have been seriously disordered. Some critics condemn all such adventures as 'side-shows'. They may be right; but it is always to be remembered that the national character is seen at its best in solitary adventures of this kind, and that the British Empire, from the first, was built up by side-shows--many of them unauthorized by the Government. The experience of this war, and of former wars, proves only that these enterprises lose a great part of their value if they are timidly designed or half-heartedly executed. To condemn them out and out is to prefer the German plan of empire, which depends wholly on central initiative and central control, to the sporadic energy of the British Empire, which can never be killed by a blow aimed at the centre, for its life is in every part. Military theory, based as it is chiefly on the great campaigns of continental conquerors, has so impressed some of its British students that they forget their own nature, renounce their pride, and cheapen their dearest possessions. The overseas work of the Naval Air Service during the closing months of 1914, from the battle of Ypres onwards, can be briefly stated. It consisted of help given to the British army, reconnaissances and attacks carried out along the occupied coast of Belgium, and two great air-raids. During the battle of Ypres one naval aeroplane was working for the First Army Corps. Reconnaissances were carried out daily by the few available machines. Squadron Commander Davies on three occasions attacked German machines in the air; they escaped by planing down to behind their own lines. Flight Lieutenant Collet, whose aeroplane had been wrecked, flew as observer to Squadron Commander Davies, and reported the positions of six new German batteries. Flight Lieutenant Pierse, in an old inefficient machine which climbed badly, made many flights along the coast, and was wounded by shrapnel in the air over Antwerp. Meantime, on the 31st of October, a seaplane base was established at Dunkirk in the works of the shipbuilding company, which occupied a part of the harbour. Under Squadron Commander J. W. Seddon the seaplanes did some good work; they located enemy guns, dropped heavy bombs on Bruges railway station, co-operated with the ships' guns in the bombardment of the coast, kept a look-out for German submarines, and reported on the enemy defences.