Monda thus becomes the point of concentration of all the roads proceeding from the inland towns to Marbella; the pass of Ojen, in its rear, offering the only passage through the mountains to reach that city.
The road from this pass, as has already been described, approaches Monda by the valley watered by the river Seco; which stream, directed in the early part of its course by the Sierra de Monda on its right, flows nearly due north for about a mile and a half beyond where the road to Monda leaves its bank, receiving in its progress several tributary streams that rise in the mountains on its left. On gaining the northern extremity of the ridge of Monda, the rivulet winds round to the eastward, still washing the base of that mountain, but leaving the hilly country on its left bank, along which a plain thenceforth stretches for several miles. The stream again, however, becomes entangled in some broken and intricate country, ere reaching the wide plain of the Guadaljorce, into which river it finally empties itself.
The situation of Monda, with reference to the surrounding country, having now been fully described, it is necessary, ere proceeding to shew that the ground in its neighbourhood answers perfectly the account given of it by Hirtius, to offer some remarks on the causes that may be supposed to have led to a collision between the hostile Roman armies on such a spot, since the present unimportant position of Monda seems to render such an event very improbable.
Cæsar, it would appear, after the fall of Ategua, proceeded to lay siege to Ventisponte and Carruca—two places, whose positions have baffled the researches of the most learned antiquaries to determine—his object, evidently, having been to induce Pompey to come to their relief. His adversary, however, was neither to be forced nor tempted to depart from his politic plan of “drawing the war out into length;” but, retiring into the mountains, compelled Cæsar, whose interest it was, on the other hand, to bring the contest to as speedy an issue as possible, to follow him into a more defensible country.
With this view, leaving the wide plain watered by the Genil and Guadaljorce on the northern side of the mountains, Pompey, we may imagine, retired towards the Mediterranean, and stationed himself at Monda; a post that not only afforded him a formidable defensive position, but that gave him the means of resuming hostilities at pleasure, since it commanded the roads from Cartama to Hispalis (Seville), by way of Ronda, and from Malaca, along the Mediterranean shore, to Carteía,[183] where his fleet lay; and, should his adversary not follow him, the situation thus fixed upon was admirably adapted for carrying the war into the country in arms against him, the two opulent cities of Cartama and Malaca (which there is every reason to conclude were attached to the cause of Cæsar), being within a day’s march of Monda.
Here, therefore, Pompey occupied a strategical point of great importance; and Cæsar, fully aware of the advantage its possession gave his opponent, determined to attack him at all risks.
The hostile armies were separated from each other by a plain five miles in extent.[184] That of Cæsar was drawn up in this plain, his cavalry posted on the left; whilst the army of Pompey, whose cavalry was stationed on both wings, occupied a strong position on a range of mountains, protected on one side by the town of Munda, “situated on an eminence;” on the other, by the nature of the ground, “for across this valley” (i.e. that divided the two armies), “ran a rivulet, which rendered the approach to the mountain extremely difficult, because it formed a morass on the right.”
Now although the town of Munda is here described as protecting Pompey’s army on one side, yet from what follows it must be inferred that it was some distance in the rear of his position, since, not only is it stated that “Pompey’s army was at length obliged to give ground and retire towards the town,” but it may be taken for granted that, had either flank rested upon the town, the cavalry would not have been posted on “both wings.”
Moreover, it is stated that “Cæsar made no doubt but that the enemy would descend to the plain and come to battle,” the superiority of cavalry being greatly on Pompey’s side—“but,” Hirtius proceeds to say, “they durst not advance a mile from the town,” and, in spite of the advantageous opportunity offered them, “still kept their post on the mountain in the neighbourhood of the town.”
It may therefore be fairly concluded, that Pompey’s position was on the edge of a range of hills, some little distance in advance of the town of Munda, having a stream running in a deep valley along its front, and a morass on one flank. Now the question is, Can the ground about Monda be made to agree with these various premises? Certainly not, if, as is generally assumed, the battle was fought on the eastern side of the town; for Pompey’s position must, in that case, have extended along the ridge, so as to have the peaked Sierra, above Monda, on its right, and the river Seco on its left, whilst Monda itself would have been an advanced post of the line; and so far from there being a plain “five miles” in extent in front, the country to the east of Monda—though for some way but slightly marked—is, at the distance of two miles, so abruptly broken as to render the drawing up of a Roman army impossible.