“During the latter part of January General Otis was informed on good insurgent authority that the insurgents meditated an attack upon those troops, and he was advised to remove them, as in their exposed position they would kill them all. General MacArthur, under whose command the regiment was, placed two guns in position there, as it was fully expected that the insurgents would direct their attack upon that point, as in fact they did. On February 4, 1899, the tents of the regiment covered the ridge, and its outposts extended along the San Juan River, a small stream which formed part of the line of delimitation between the Americans and the insurgents.
“For some days before the outbreak of hostilities the pressure of the insurgents was constant along this position, so constant indeed that in the light of subsequent events it indicated a premeditated purpose on the part of some one in the insurgent army to force a collision at that point. On February 2 General MacArthur, commanding the Second Division of the Eighth Army Corps, wrote to the commanding general of the Filipino troops in the third zone in front of him that—
“‘An armed party from your command now occupies the village in front of blockhouse No. 7, at a point considerably more than a hundred yards on my side of the line, and is very active in exhibiting hostile intentions. This party must be withdrawn to your side of the line at once. From this date if the line is crossed by your men with arms in their hands they must be regarded as subject to such action as I may deem necessary.’
“Colonel San Miguel, who commanded at San Juan del Monte, replied upon the receipt of this communication that the action of his troops was foreign to his wishes and that he would give immediate orders for them to retire. At about half past 8 on the night of February 4 a small insurgent patrol entered the territory within the American lines at blockhouse No. 7 and advanced to the little village of Santol in front of an outpost of the Nebraska regiment. This was the same point from which the insurgents had been compelled to retire on February 2. An American outpost challenged, and then as the insurgent patrol continued to advance the sentinel fired, whereupon the insurgent patrol retired to blockhouse No. 7, from which fire was immediately opened upon the Americans. This fire spread rapidly down the American and insurgent lines and both forces at once sprang to arms.”[43]
General Otis’s account of the opening of active hostilities follows:—
“On the night of February 2 they sent in a strong detachment to draw the fire of our outposts, which took up a position immediately in front and within a few yards of the same. The outpost was strengthened by a few of our men, who silently bore their taunts and abuse the entire night. This was reported to me by General MacArthur, whom I directed to communicate with the officer in command of the insurgent troops concerned. His prepared letter was shown me and approved, and the reply received was all that could be desired. However, the agreement was ignored by the insurgents and on the evening of February 4 another demonstration was made on one of our small outposts, which occupied a retired position at least 150 yards within the line which had been mutually agreed upon, an insurgent approaching the picket and refusing to halt or answer when challenged. The result was that our picket discharged his piece, when the insurgent troops near Santa Mesa opened a spirited fire on our troops there stationed.
“The insurgents had thus succeeded in drawing the fire of a small outpost, which they had evidently labored with all their ingenuity to accomplish, in order to justify in some way their premeditated attack. It is not believed that the chief insurgent leaders wished to open hostilities at this time, as they were not completely prepared to assume the initiative. They desired two or three days more to perfect their arrangements, but the zeal of their army brought on the crisis which anticipated their premeditated action. They could not have delayed long, however, for it was their object to force an issue before American troops, then en route, could arrive in Manila.”[44]
Thus began the Insurgent attack, so long and so carefully planned for. We learn from the Insurgent records that the shot of the American sentry missed its mark. There was no reason why it should have provoked a hot return fire, but it did.
The result of the ensuing combat was not at all what the Insurgents had anticipated. The Americans did not drive very well. It was but a short time before they themselves were routed and driven from their positions.
Aguinaldo of course promptly advanced the claim that his troops had been wantonly attacked. The plain fact is that the Insurgent patrol in question deliberately drew the fire of the American sentry, and this was just as much an act of war as was the firing of the shot. Whether the patrol was acting under proper orders from higher authority is not definitely known.