Of the ground, also, it may be said that subsequent writers have attached more importance to it than it really deserved. Whatever features the hand of time may have defaced, it could never have been more than ordinarily defensible, excepting on its northern extremity, where it is still hemmed round by an extensive bog. Its advantages are thus briefly summed up in one sentence by the English chaplain: "_Here_ we had a view of their whole army, posted as before described, by which posture they had the advantage by at least 1,000 men"[68]--no unusual advantage in the selected site of a battle-field. Of the generals who commanded the respective divisions of St. Ruth's army, or of the regiments that constituted them, little can be established from contemporary or subsequent historians, beyond this:--That Colonel Walter Burke and his brother, Colonel David Burke, held the Castle of Aughrim and its defences; that Lord Bophin, Brigadier Henry Luttrell, Colonels Simon Luttrell, and Ulick Burke commanded on the left; that Major-Generals Dorrington, H. M. J. O'Neil, Brigadier Gordon O'Neil, Colonels Felix O'Neil, and Anthony Hamilton, held the centre; and that Lords Kilmallock, Galmoy, Galway, Clare, and Colonel James Talbot commanded on the right. And judging from the positions held by those leaders respectively, and the regiments they indicate, it may be inferred that the Munster troops were on the right, the Leinster and Ulster troops in the centre, and that those of Connaught held the left and its surroundings. In addition to those division and regimental commanders, the marshalling of the entire infantry was deputed to General William Mansfield Barker, and that of the cavalry to Major-General John Hamilton;[69] and the whole was commanded by the Marquis de St. Ruth and Lieutenant-General Sarsfield,[70] aided by Generals d'Usson and de Tessé, and other officers of established reputation.