18th Reserve Division (German Empire)

The division was composed primarily of troops from Schleswig-Holstein, the Hanseatic Cities, and the Mecklenburg grand duchies.

The 9th Reserve Jäger Battalion was raised in Lauenburg, a former duchy on the Baltic coast which had passed from Denmark to Prussia in 1864.

From mid-July to late October 1916, it fought in the Battle of the Somme with only one interlude away from the front.

In 1918, it occupied various parts of the line and fought against several Allied offensives, including in the second Battle of Cambrai.

Over the course of the war, other changes took place, including the formation of artillery and signals commands and a pioneer battalion.