The battle begins (1 Macc 9:11-9:13)

“Then the army of Bacchides marched out from the camp. They took their stand for the encounter. The cavalry was divided into two companies. The slingers and the archers went ahead of the army, as well as all the chief warriors. Bacchides was on the right wing. Flanked by the two companies, the phalanx advanced to the sound of the trumpets. The men with Judas also blew their trumpets. The earth was shaken by the noise of the armies. The battle raged from morning until evening.”

The large army of Bacchides and the Syrians marched out from camp ready to engage the battle. There were 2 companies of cavalry. The slingers, the archers, and the chief warriors were ahead of the army.   Both sides sounded their trumpets as the earth shook from the noise of the armies. The battle raged from morning until evening.

Achior is sent to the Israelites (Jdt 6:10-6:13)

“Then General Holofernes ordered his slaves, who waited on him in his tent, to seize Achior. He wanted them to take him to Bethulia. There they would hand Achior over to the men of Israel. Thus the slaves took him. They led him out of the camp into the plain. From the plain, they went up into the hill country. They came to the springs below Bethulia. When the men of the town saw them, they seized their weapons. They ran out of the town to the top of the hill. All the slingers kept them from coming up by throwing stones at them. The slaves of Holofernes took shelter below the hill. They then bound Achior. They left him lying at the foot of the hill. Finally, they returned to their master.”

General Holofernes ordered his slaves to take Achior to Bethulia. Unfortunately we are unable to pinpoint where Bethulia might be since it is only mentioned in this book. It must have been fairly close to Dothan or near current day Jenin. Some have seen this as a veiled reference to Jerusalem. They left Achior at the bottom of the mountain, because the people of Bethulia came out with weapons when they saw the troops of General Holofernes coming towards them. They started slinging stones at them. The men of Holofernes then left Achior at the foot of the hill, after binding him up. They then returned to Holofernes.