Why did About one third of all Armenians died at the beginning of World War 1 due to .?

About one third of all Armenians died during World War I primarily due to the Armenian Genocide, which was orchestrated by the Ottoman Empire. Beginning in 1915, the government implemented mass deportations, forced marches, and systematic killings of Armenians, driven by a combination of nationalism, wartime paranoia, and a desire to eliminate the Armenian population within its borders. This tragic event led to the deaths of an estimated 1.5 million Armenians, profoundly impacting the Armenian community and its diaspora.