In late January , the British learned Know that the Italians were retreating Escaping along the Litoranea Balbo ( `` Via Balbia '' ) from Benghazi .

Late on 5 February , Combeforce arrived at Arriving the `` Via Balbia '' south of Benghazi and set up Building road blocks Hiding_objects near Sidi Saleh , about south-west of Antelat and north of Ajedabia .