Original sentence: During the Warsaw Uprising (August-October 1944), Wola was the scene of fierce battles against Nazi German forces.It was there that, on August 8, 1944, the Germans perpetrated the largest single massacre of civilians (some 40,000) during the Uprising
Edited sentence: During the Warsaw Uprising (August-October 1944), Wola was the scene of fierce battles between the rebels and Nazi forces.The largest execution of rebels (some 40 000) during the uprising was carried out in Wola on August 8, 1944