World War I June 28th 1914 - November 11th 1918 (28 июн 1914 г. – 11 ноя 1918 г.)

First World War, the Great War, the Seminal Catastrophe, a war against the Central and Allied powers.

28 июн 1914 г.

11 ноя 1918 г.

~ 4 years and 4 months