February 1904, and on 18 June 1904 the Imperial Russian Army began the formation of the 6th Siberian Army Corps, consisting of the 55th and 72nd Infantry Divisions. On 27 July 1904, Radkevich's 10th Artillery Brigade became part of the new corps. The corps completed its formation in July 1904, and in September 1904 it became part of the 1st Manchurian Army. He saw action with the 10th Artillery Brigade in the Battle of Shaho in October 1904. On 11 December 1904, he became chief of artillery of the 6th Siberian Army Corps, and in that position participated in the Battle of Sandepu in January 1905. On 4 February 1905 he became provisional commander of the 72nd Infantry Division, leading it in the Battle of Mukden in February–March 1905. Official approval of his command of the division was promulgated on 27 May 1905. For his Russo-Japanese War service he was awarded the Order of Saint Stanislaus First Class with Swords, the Order of Saint Anna First Class with Swords, and the Golden Weapon for Bravery. Between the wars After the Russo-Japanese War ended in August 1905, Radkevich remained in command of the 72nd Infantry Division. From 3 February 1906 to 14 June 1908 he commanded the 10th Infantry Division, simultaneously he serving as interim Governor-General of Petrokov Province from 30 July 1906 to 5 September 1907 an as commander of the Lodz Garrison from 22 January 1908. From 14 June 1908 to 1 September 1912, Radkevich was commander of the 3rd Siberian Army Corps, simultaneously serving as temporary commander of the Irkutsk Military District from 11 December 1909 to 6 February 1910 and again from 20 December 1910 to 20 February 1911. He retired on 1 September 1912, and on 9 September 1912 received a promotion in retirement to general of the infantry on 9 September 1912, with a date of rank of 8 May 1912. World War I The Russian Empire entered World War I on 1 August 1914. On 7 August 1914, Radkevich returned to active duty and was re-appointed commander of the 3rd Siberian Army Corps, which became part of the new 10th Army. During the Russian invasion of East Prussia, the 10th Army began fighting the Imperial German Army's 8th Army in the Augustów Forest on 15 September 1914. Although the 10th Army's 2nd Caucasian Army Corps and the 22nd Army Corps failed to achieve their