That is was the key stone to their life and they needed to protect it at with everything they had to offer,
religion. that's literally it. religion.
Answer: The devshirme system began in the late 14th century. Christian boys were recruited by force to serve the Ottoman government. The boys were generally taken from the Balkan provinces, converted to Islam, and then passed through a series of examinations to determine their intelligence and capabilities.
Explanation: