after such an operation" as that of a raid. [Illustration: ARMOURED TRAIN. [_To face p. 45._] Bearing these considerations in mind, it is not altogether surprising that the military authorities awoke to the fact that the policy of having two strings to one's bow is not usually a bad one; and so, rather than "rely for safety against raids or invasion on the Fleet alone," they bethought themselves of the secondary line of defence which would readily be afforded by armoured trains. Any serious attempt at landing by the enemy was, in Viscount Jellicoe's opinion, "not very likely in the earliest days of the war, the nights were comparatively short, and the Expeditionary Force had not left the country. It was also probable," so he thought, "that the enemy had few troops to spare for the purpose." But in proportion as "we denuded the country of men, and the conditions in other respects became more favourable," so did the anxiety of the home authorities increase, resulting in an urgent order being received at Crewe in October, 1914, for the first of the armoured trains. Even when so undoubted an authority as Mr. Lloyd George affirms (cp. the _Times_, July 1st, 1915) that "those who think politicians are moved by sordid pecuniary considerations know nothing either of politics or politicians," some people there may be who require a grain of salt wherewith to swallow so glib a declaration. Statesmen, possibly yes; but politicians--well, the least said is often the soonest mended. But even our belief in the sincerity of statesmen is apt to be a little shaken when we find a former Prime Minister, none other then the revered Mr. Balfour, devoting himself to the A.B.C. of the Little Navyites and solemnly declaring in the House of Commons (cp. the _Times_, May 11th, 1905) that the "serious invasion of these islands is not an eventuality which we need seriously consider." One has only to contrast this expression of a complacent and false sense of security with the dogma which has ever imbued the soul of the insatiable Hun:--"The condition of peaceableness is strength, and the old saying still holds good that the weak will be the prey of the strong" (Dr. von Bethmann-Hollweg in the _Reichstag_, March 30th, 1911), and we can never feel too grateful for the knowledge that in spite of politicians and statesmen, the problem of home defence was never relegated to the dust-bin by those whose obvious duty it is to preserve our shores inviolate. As evincing the serious amount of attention devoted to the subject, a perusal within the library of the Royal United Service Institution of a paper read by--then 2nd-Lieutenant, now--Major-General Sir E. P. C. Girouard, K.C.M.G., R.E., on "The Use of Railways for Coast and Harbour Defence" as long ago as 1891, and published in the journal of the Institution, is of exceptional interest, as the following few extracts reproduced through the courtesy of the Librarian of that Institution tend to show.