WORLD HISTORY

Detailed explanation-1: -Siding with Germany in World War I may have been the most significant reason for the Ottoman Empire’s demise. Before the war, the Ottoman Empire had signed a secret treaty with Germany, which turned out to be a very bad choice.

Detailed explanation-2: -Russian troops invaded the Ottoman Empire, moving into the east Anatolian provinces of Trabzon, Erzurum, and Van (all of which had large Armenian populations). Great Britain and France attacked the Empire during the last week of April 1915 at Gallipoli, with the aim of knocking the Ottomans out of the war.