This is a timeline of events during the second half of World War I, from 1916 to 1919. From the devastating Battle of the Somme to the introduction of U-boats and the eventual signing of the Treaty of Versailles, this period witnesses significant battles, shifting alliances, and the profound impact of the war on nations and their people.

Originally released by Makematic, 2023. Streaming video file encoded with permission for digital streaming by Infobase on October 02, 2023.