Complex sentence: Altogether some 6000 allied troops were killed, including 4000 Scots, the English lost 1600 men, an unusually high figure for them, far greater than their losses at Agincourt, indicating the ferocity of the fight.
Split into simpler sentences: Altogether some 6000 allied troops were killed, including 4000 Scots. The English lost 1600 men, an unusually high figure for them, far greater than their losses at Agincourt, indicating the ferocity of the fight.