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 An officer who commanded one of these batteries at the battle of Mukden, and who later was detailed to lecture to the attachés with the First Army, said that on one occasion there he continued this fire until the advancing infantry had arrived within 30 metres of the enemy's position. It is claimed the fire should almost invariably be directed against the opposing infantry. The gun is comparatively heavy, and when in action the battery is advancing with the infantry it is sometimes difficult to keep up with the latter, and moreover the men carrying the gun offer a good target; and for these reasons the guns should frequently remain in position as the echelons make their rushes, provided cover is provided and a free field of fire secured. It is not essential that they should be at all times immediately on the line occupied by the infantry, although when the latter, after a considerable advance, meets with determined opposition, some guns should be brought up. This will give a feeling of confidence, and if need be help to check a counter-*attack. When advancing under fire, it is often a good plan to move one gun at a time. Battery commanders report good results when firing at long ranges—that is, between 1,200 and 1,800 metres. One thousand five hundred shots per gun is the greatest number I heard of being fired in one hour. These guns were sometimes attached to outposts. The loss among men serving machine guns is usually great, and