After an attempt to break through the Tannenberg Line failed, the main struggle was carried to the south of Lake Peipus, where on August 11, Petseri was taken and Võru on August 13.
Cando fallou o intento de abrirse camiño a través da liña Tannenberg, a principal forza desprazouse cara ao sur do Lago Peipus, onde o 11 de agosto Petseri foi tomada, e Võru o 13 de agosto.