The relief force was under the joint command of Sir Henry Duke and Sir Edward Herbert, and included experienced soldiers such as Captains
Humphrey Willis, Henry Street, George Bingham, and John Dowdall (commander of the force that had taken Enniskillen in February). They had 600 infantry and 46 horsemen. Duke and Herbert believed this to be insufficient, and wrote to the
Lord Deputy that "to go without a thousand men at the least or otherwise we shall dearly repent our going". No reinforcements were forthcoming, so the column set out from
Cavan on 4 August. Burdened with supplies, the army was expected to take four days to march 29 miles north to Enniskillen. When the Irish surrounding Enniskillen learned of the relief force, they moved to intercept it with c.1,000 men, which included horsemen,
kern, and caliver-men. On the evening of 6 August, the English force made camp three miles south of a ford on the Arney River. That night the English camp was harried by Irish gunfire and incessant skirmishing meant the English troops were poorly rested when they set out on 7 August to relieve the beleaguered garrison. The English came under Irish fire from the surrounding hills, and a counter-attack was stillborn when its leader Captain Fuller was killed by an Irish javelin. With most of the supplies abandoned at the river, Duke and Herbert decided their only option was to retreat. However, their retreat to the ford was met with renewed gunfire. The disintegrating army had to run along the river and cross at another ford an "arrow shot" upstream, casting aside their weapons and armour. Luckily for the English, they were not pursued as most of the Irish had fallen to looting the baggage train which gave the battle its name,
Béal Átha na mBriosgadh or The Ford of the Biscuits. The English commanders Duke and Herbert recorded 56 soldiers killed and 69 wounded. ==Aftermath==