I want to know the answer to the following question:
When did the Russian Caucasus Army advance into eastern Anatolia?
All the background I'm provided with is that "In 1915, as the Russian Caucasus Army continued to advance into eastern Anatolia, the Ottoman government started the deportation of its ethnic Armenian population, resulting in the death of approximately 1.5 million Armenians in what became known as the Armenian Genocide.". Is that enough to answer the question?
Answer: yes