With the redeployment of Hanneken's battalion, the 700 troops of 1st Battalion, 7th Marines under Lieutenant Colonel Chesty Puller were left alone to hold the entire 2,500 yd (2,300 m) line on the southern face of the Lunga perimeter east of the Lunga River.
Dengan penempatan batalyon Hanneken, 700 prajurit Marinir ke-7 Batalyon ke-1 pimpinan Letkol Chesty Puller ditinggal sendirian untuk mempertahankan garis sepanjang 2500 yd (2300 m) di sisi selatan perimeter Lunga yang terletak di timur Sungai Lunga.