This document provides an overview of World War 1 and some of its aftermath. It outlines the major alliances between European powers in 1914 that led to the outbreak of war. It then details some of the major battles and developments on the Western Front, as well as involvement of countries like the US, Britain's colonies, and the Ottoman Empire. The document concludes by discussing the 1918 flu pandemic, end of the war in 1918, postwar peace negotiations and territorial changes, and some social unrest in the US during the 1919-1920 period.