1. At the beginning of 1915 the 36th Reserve Division took part in the engagements on the line Bzura-Rawka-Bolimov (Jan. 4 and Feb. 5).
Prasnysz.
2. On February 13 the division entrained, with the entire 1st Reserve Corps, to reenforce the right wing of the Germany Army, which was pushing back the Russians from East Prussia. Detraining at Ostrolenka, it attacked in the vicinity of Mlawa, then near Prasnysz (April), where the Russian counterattacks caused it to suffer heavy losses.
Courland.
3. In May, it took part in the Hindenburg offensive in Courland. First occupying the sector of Jurburg, north of Niemen, it reached Ponieviej in July and from there pushed on to the vicinity of Dvinsk. The division suffered heavily during this period. On October 15, the 61st Reserve Infantry Regiment had an average of only 80 men per company (letter).
Friedrichstadt.
4. In December, the 36th Reserve Division occupied the sector of Friedrichstadt, southeast of Riga.
1916.
1. The division remained in its Courland sector (Friedrichstadt) until September 24, 1916.