 Complete the following phrase:  At the start of World War I, Skoropadsky was put in charge of the reorganized 1st Brigade of the 1st Cavalry Guard Division General Nikolai Kaznakov as part of the 1st Army commanded by General Paul von Rennenkampf. Skoropadsky already worked for von Rennenkampf during the Russo-Japanese War when the last was commanding Trans-Baikal Cossack Host. On August 6, 1914, his regiment distinguished itself in battles near Kraupishken as part of the 