Short Answer 
The Armenian Genocide, targeting approximately 1.5 million Armenians during World War I, was orchestrated by the Young Turks due to nationalist ideologies. Despite widespread recognition of the genocide, Turkey continues to deny it, leading to diplomatic tensions and ongoing efforts for commemoration and education about the atrocities.
Step 1: Understanding the Target of the Genocide
The Ottoman government primarily targeted the Armenians during World War I due to rising nationalist ideologies. The Young Turks, a nationalist group controlling the government, perceived Armenians as a threat to their power. This led to systematic measures aimed at eliminating the Armenian population within the Ottoman Empire.
Step 2: The Events of the Armenian Genocide
Starting in 1915, the Armenian Genocide unfolded with the mass murder of an estimated 1.5 million Armenians. Victims faced horrific treatments such as:
- Massacres carried out by Ottoman forces.
- Forced deportations to desolate regions.
- Death from starvation and exposure during these deportations.
These atrocities were motivated by a desire to create a more homogeneous society within the empire.
Step 3: Recognition and Denial of the Genocide
Many scholars and nations recognize the Armenian Genocide as a significant historical event, although Turkey denies its occurrence. This denial has caused ongoing diplomatic tensions between Turkey and countries that acknowledge the genocide. Despite the challenges, there are continuous efforts globally to commemorate the victims and educate future generations about this dark chapter in history.