# The War with Mexico/Volume 1/Preface To Notes On Volume 1

Contents
NOTES
PREFACE
2. A second reason for preparing this history was that a number of important topics — such as the conditions existing in the two countries just before the war, the war in American politics, our conduct and methods in occupied territory, the finances of the war, its foreign relations, etc. — had been treated most superficially or not at all, In the third place it was hoped to handle more carefully the material previously used. The bound volumes entitled "Archive de Guerra" in the Archive General y Público at Mexico occupy some 200 feet of shelf room, and the papers examined in the Archive de Guerra y Marina, which had to be examined one by one, would probably, if placed one on another, make a pile sixty feet high.
As will be seen from the detailed account of the MS. sources (appendix), the author did not visit the archives of all the Mexican states and cities. This was because nothing further of local value could he hoped for, and because the practice of communicating from state to state copies of important documents made it seem unnecessary to continue in those directions. The results in Peru and Colombia were negative, but this fact had a positive significance, for there were reasons to look for an active sympathy and correspondence with Mexico in those quarters The author planned to examine the Prussian archives, but the outbreak of the great war prevented him from doing so. From other trustworthy sources, mostly unpublished, he fully understood the attitude of that government, however (chap. xxxv). The reports of the Prussian representative at Mexico cannot have been reliable, both because of his personal characteristics and because for several reasons he did not stand within the inner circle, and probably, since his government felt scarcely any interest in the war, they were not full. Hence it is not believed that anything of material value has been lost through the impossibility of examining them Of some of the newspaper files only scattered portions were found. Many newspapers, as well as many books and pamphlets, were read to ascertain the general temper, social state, and political conditions of the two countries, and it appeared unnecessary to set down references which would have been almost innumerable — to such literature, The author contemplated at one time a critical discussion of the sources, but he soon found that this would require too much space. It would in fact make a volume. For additional information regarding the sources one may consult an article of the author's that appeared in The Military Historian and Economist, vol. i, no. 1.
​3. The printed versions of diplomatic and military documents, when substantially correct, are usually cited in the notes, because they are easily accessible; but so far as possible they have been collated with the originals. On the value of official military reports the author presented some remarks in the American Historical Review, vol. xxi, p. 96. Gen. Worth said privately that Scott's report on the battle of Cerro Gordo was "a lie from beginning to end," and in a sense different from what this language would at first sight appear to mean, it was fairly correct (chap. xxiii, note 33). Subordinate officers not infrequently brought all possible influence, both personal and political, to bear upon the general whose report they knew would be printed. A general naturally favored in his report the regiment and the officers with whom he had been formerly associated. An undue regard for rank was often felt. Taylor asked a promotion for Brig Gen. Twiggs after the capture of Monterey though Twiggs had been ostensibly ill at the time and had taken no material part in the fight. Captain (later General) Bragg wrote: 'The feelings succeeding a great victory caused many things to be forgotten and forgiven which would sound badly in history, and which will never be known except in private correspondence" (210to Gov. Hammond, May 4, 1848). An important document issued by our government was privately described by the adj. gen. as "full of inaccuracies" (117R. Jones to B. Mayer, Oct. 10, 1848).
A special reason for leaving no stone unturned has been the consideration that the omission of a significant fact is even worse than a positive error, since it is equally misleading and less likely to be discovered. In many instances an apparently insignificant document proved to be the keystone of an arch or at least to fill a serious gap, and the cumulative effect of a number of such documents frequently established a capital fact. Documents not actually used often prove helpful by preventing the writer from drawing inferences that look reasonable but are in fact incorrect (see the last paragraph of the article in the Military Historian cited above). Even minutæ enable one to give life and, so to speak, rotundity to events, and to do this is to increase the fidelity of the narrative. The more information the historian possesses, the better he can criticise particular documents. In consequence of a want of this full acquaintance with the facts, documents relating to the subject have previously been misunderstood. Still another valuable fruit of a wide investigation is a higher degree of confidence on the part of both author and reader that no later discoveries will upset present conclusions. For Scott's statement see 65gen. orders 249, Aug. 6, 1847.
Naturally the author had little occasion to use previous histories of the war, and indeed he took care not to consult them while writing this work. No thorough attempt has been made to point out their errors and no wish is felt to criticize them in general; but it needs to be explained that while Ripley, Wilcox, Furber and Roa Bárcena present statements of minor importance, not found elsewhere, which the author wished to use, he has seldom felt at liberty to do so. As is well known those authors were not critical historians. They were also too near the events. It is frequently impossible to be sure whether their statements rested upon hearsay, upon trustworthy second-hand information, or upon personal knowledge. Roa Bárcena spoke as a Mexican. Wilcox aimed to glorify our officers and men; and Ripley intended to exalt the unworthy Pillow at the expense of Scott (chap. xxiii, note 29; and, for an interesting though ​not wholly correct review of Ripley, So. Qtrly. Rev., Jan., 1851, 149-60). Pillow 185wrote in reference to Ripley's book, He has torn Scott "the man and the officer all to pieces." The recent work by Rives contains much that is sound as well as dignified; but his investigations came far short of the requirements. The present author has frequently taken pains to write in such a way as to correct errors without mentioning them, and the reader may feel sure that he has carefully considered all statements not in agreement with his own.
4. Particular reasons why a civilian could venture to prepare the history of this war were that (1) owing largely to the smallness of the numbers engaged, the operations were simple; (2) the reports were written for non-military readers; and (3) a large amount of good criticism was written at the time or soon afterwards — mostly in a private way — by competent officers who were personally familiar with the circumstances. As a matter of fact military men's technical knowledge does not necessarily enable them to reach correct historical conclusions. This is proved by their radical differences of opinion (e.g. compare the articles on Wilcox's History of the Mexican War, Journal of U.S. Artillery, July and Oct., 1892) and their manifest errors of judgment. Gen. U. S. Grant pronounced Scott's strategy on Aug. 20, 1847, faultless as a result of the perfect work of his engineer officers (Pers. Mems., i, 145); but the engineer from whose report Scott's essential orders regarding the battle of Churubusco resulted admitted privately that he blundered (xxvi, notes, remarks on Churubusco). The dicta of military authorities are not often quoted by the author, because war cannot be made by rule and it would be necessary to consider in each case whether the dictum was applicable.
A very difficult matter was to decide how many military details to introduce. There is hardly any limit to the names of officers and commands and the minutæ of movements that might have been presented. The principle adopted was to draw the line between historical value and antiquarian value, to include what was needed to show how the important results were brought about and allow the curious reader to ascertain the rest of the details by looking up the references.
The reader who has given no study to the subject may perhaps welcome a few informal and obviously incomplete remarks on the principles of war. One proper aim is the occupation of territory, and this may possibly be accomplished without fighting; but essentially combat is presupposed, and the purpose is then to destroy or in some other way eliminate the enemy's military strength, so that he will feel compelled to accept our terms. Therefore the general should (1) make all possible preparations; (2) take the initiative and lose no time; (3) secure unity in plan and in action; (4) obtain as much information as possible regarding the enemy and beware of despising him; (5) embarrass him and break down his morale, while building up your own, through rapidity of movement, surprises, feints, threats against his communications, etc.; (6) select for objective a point combining, as far as may be, weakness and decisiveness — qualities often incompatible, of course; (7) running no avoidable risk of inadequacy, concentrate near and move upon this an overpowering force, while diverting the enemy's forces from it; (8) strike with energy and decision; and (9) if successful, pursue to the limit of endurance and safety. In a general way it may be said that an "indirect" or "oblique" (i.e. flank) attack is preferable, but obviously the actual conditions must decide whether to adopt that method. In view of these principles, strategy ​determines when, where, and with what forces a battle shall be fought, and tactics directs the battle itself, It follows that on the defensive one should protect one's communications, force the enemy to send out detachments and rout or annoy these; and, if such methods have no saving effect, retire to a position strong by nature, art, or both, and, while defending it, watch for opportunities to strike. One may consult on those points and on the text to which this note refers Clausewitz, On War, book i, chap. 7; Jomini, Précis, i, 470-2; Murray, Reality of War, 21, 77; Donat, Strategical Science, 275 — 6; Henderson, Science of War, 19720; Griepenkerl, Applied Tactics 116; Goltz, Conduct of War, 1042; Jour. Milit. Serv. Institut, 1908, p. 31; Am. Hist. Rev, xi, 3884
5. As the author was compelled to depart in many cases from the familiar method of referring to the sources, he feels bound to explain how these were handled. All the material, condensed as much as it safely could be, was marked in the margin with Roman figures, indicating to what chapter each sentence or larger section would belong. Then the sections were copied into packets, each oi which contained all the material of a chapter. Next the material of each packet was analyzed into topical items, and the items were numbered with Arabic figures. In Writing a chapter the author placed after each sentence (or, if the case demanded, after each clause, phrase or word) the Arabic figures numbering the items upon which it rested. These figures were retained through the successive revisions until the MS. was ready to print, and were used in the re-examination of the work. By this routine every document was considered at least five times. Of course care was taken at all stages to ensure correct copying; yet in the final revision the author went back, unless there was a good reason for not doing so, to originals or to trustworthy copies from the originals — doing this not merely to verify the references but also to see, in the light of the completed investigation of the subject, whether he had omitted or misunderstood anything of importance in making notes and condensations. The text and remarks as written looked thus:
"Gen Patterson once asserted that Volunteers were no worse than regular 578, but the evidence of other officers 83 — 4 340 385 564 568 1266 and of the Mexicans 84 87 340 489 582 1236 was overwhelmingly against him. Regulars committed offences, but these appear to have been commonly mere pilfering 181 562, and to have been chargeable mostly to fresh recruits 83 1103 It is probable, however, that the Volunteer troops often bore the blame 109 for acts done by soldiers dishonorably discharged 659 9.31, deserters 582 601 659 639 945, teamsters and other civilian employees 358 1315 and the many "black legs" 377 and "human vultures" 1292 who followed the army 365 568 639. The. great difficulty was to identify the culprits 1315, Mexicans were often afraid to testify against our soldiers 1266."
The saving of space and labor that resulted from the grouping of citations can easily be illustrated. Take the case of ten statements resting upon ten documents, which may be represented by the first ten letters of the alphabet Were the usual method followed the references might be: acj, dfghi, be, adeghj, fij, bcf, adeg, cfh, i, bdghj; Whereas by the group method the references would be abcdefghij — in the former case 35, in the latter 10. The higher cost of the former method might have enforced the omission of all references from the printed volumes, if indeed the increased labor of writing, copying, and proof-reading the references had not ​deterred the author — as it might well have done — from completing his task. As it stands, the book probably represents (including the work of clerical assistants) nearly twenty years of labor. After all, the chief value of citations is perhaps their effect upon the author. Few look them up; but, no matter how conscientious he may be, the fact of constantly giving such pledges of fidelity keeps him wide-awake to the necessity of accuracy, and indeed compels him to refer to his sources more than he might otherwise feel obliged to do.
* Notes On Chapter 1
* Notes On Chapter 2
* Notes On Chapter 3
* Notes On Chapter 4
* Notes On Chapter 5
* Notes On Chapter 6
* Notes On Chapter 7
* Notes On Chapter 8
* Notes On Chapter 9
* Notes On Chapter 10
* Notes On Chapter 11
* Notes On Chapter 12
* Notes On Chapter 13
* Notes On Chapter 14
* Notes On Chapter 15
* Notes On Chapter 16
* Notes On Chapter 17
* Notes On Chapter 18
* Notes On Chapter 19
* Notes On Chapter 20