German forces were particularly severe in exacting revenge for the killing of their ambassador .
Russia tightened its hold on Manchuria in the northeast until its crushing defeat by Japan in the Russo - Japanese War of 1904 .
German forces were particularly severe in exacting revenge for the killing of their ambassador , while Russia tightened its hold on Manchuria in the northeast until its crushing defeat by Japan in the Russo - Japanese War of 1904 .