Faatumu le fuaiupu lenei: I le taeao o Iulai 19, 1920, na toe faatoʻilaloina ai Novogrudok e le ʻAutau Mumu. Ina ua mavae le faatoʻilaloina o taua i Warsaw ma mulimuli ane
o le vaitafe o Niemen, i le aso 1 Oketopa, 1920, na toe faatoʻilaloina ai e fitafita Polani le aai. O vaega nei o le 1st ma le 5th Legions' Infantry Regiments, le 16th Infantry Regiment, ma le 3 maa o le 1st Legionary Artillery Regiment. O le toʻatele o i latou na auai i le vaega a le 1st Legions Infantry Division.