His enemies were not unprepared for his reception. Argyle, at the head of his Highlanders, was dogging the steps of the Irish from the west to the east, and by force, fear, or influence, had collected an army nearly sufficient to have given battle to that under Montrose. The Lowlands were also prepared, for reasons which we assigned at the beginning of this tale. A body of six thousand infantry, and six or seven thousand cavalry, which profanely assumed the title of God’s army, had been hastily assembled from the shires of Fife, Angus, Perth, Stirling, and the neighbouring counties. A much less force in former times, nay, even in the preceding reign, would have been sufficient to have secured the Lowlands against a more formidable descent of Highlanders, than those united under Montrose; but times had changed strangely within the last half century. Before that period, the Lowlanders were as constantly engaged in war as the mountaineers, and were incomparably better disciplined and armed. The favourite Scottish order of battle somewhat resembled the Macedonian phalanx. Their infantry formed a compact body, armed with long spears, impenetrable even to the men-at-arms of the age, though well mounted, and arrayed in complete proof. It may easily be conceived, therefore, that their ranks could not be broken by the disorderly charge of Highland infantry armed for close combat only, with swords, and ill furnished with missile weapons, and having no artillery whatever.
This habit of fight was in a great measure changed by the introduction of muskets into the Scottish Lowland service, which, not being as yet combined with the bayonet, was a formidable weapon at a distance, but gave no assurance against the enemy who rushed on to close quarters. The pike, indeed, was not wholly disused in the Scottish army; but it was no longer the favourite weapon, nor was it relied upon as formerly by those in whose hands it was placed; insomuch that Daniel Lupton, a tactician of the day, has written a book expressly upon the superiority of the musket. This change commenced as early as the wars of Gustavus Adolphus, whose marches were made with such rapidity, that the pike was very soon thrown aside in his army, and exchanged for fire-arms. A circumstance which necessarily accompanied this change, as well as the establishment of standing armies, whereby war became a trade, was the introduction of a laborious and complicated system of discipline, combining a variety of words of command with corresponding operations and manoeuvres, the neglect of any one of which was sure to throw the whole into confusion. War therefore, as practised among most nations of Europe, had assumed much more than formerly the character of a profession or mystery, to which previous practice and experience were indispensable requisites. Such was the natural consequence of standing armies, which had almost everywhere, and particularly in the long German wars, superseded what may be called the natural discipline of the feudal militia.