In August 1915, he was mobilized into the Imperial Russian Army during World War I and enlisted in the 4th Company of the 60th Reserve Infantry Battalion at Tambov as a volunteer.

In June of that year he graduated with the rank of Praporshchik and was appointed a junior officer in the 60th Reserve Infantry Regiment.

In August, Khozin was appointed officer for special assignments with the topographical section of the quartermaster general department of the 6th Army.

He was conscripted into the Red Army during a mobilization of party members in November 1918, appointed assistant commander of the 14th Rtishchevo Railroad Regiment.

Khozin continued to command the 34th Separate Rifle Battalion, which remained in Kirsanov and operated in the Borisoglebsk, Voronezh and Tambov sectors.

[1] From February 1921, he commanded the 22nd Separate Rifle Brigade of the Cheka Troops, which guarded the Soviet border with Estonia and Latvia.

[1] In January 1924, Khozin was appointed assistant commander of the 22nd Rifle Division at Krasnodar, and that fall went to Moscow to complete the Higher Academic Courses at the Frunze Military Academy.

[1] After Germany invaded the Soviet Union, Khozin was dispatched to hold an operational post in July, becoming deputy commander for the rear of Georgy Zhukov's Front of Reserve Armies.

Khozin simultaneously commanded the 54th Army from 26 September during operations aiming to break the Siege of Leningrad in the region of Kolpino.

[1] Postwar, Khozin was relieved of command of the Volga Military District in July 1945, considered unfit for his position.

After a year at the disposal of the Main Cadre Directorate awaiting his next assignment, he was appointed to a non-operational post, chief of the Military-Pedagogical Institute in July 1946.