Answer:
Christian leaders of the Byzantine Empire feel worried about the Muslim Ottomans which taking over territory so close to the Byzantine Empire.
Explanation:
Christian leaders of the Byzantine Empire feel worried about the Muslim Ottomans who are taking control of the areas which are close to the Byzantine Empire because they know that Muslims did not stop and after these areas, the Muslim Ottomans also attack on the Byzantine Empire in order to conquer it and expand their empire so the leaders of Byzantine Empire start struggling to stop the Muslim Ottomans to enter in their lands.
They were not allowed to eat while at work is the answer.
It is the start of the constitution
The four main causes were: militarism, alliances, imperialism and nationalism - or as an acronym, M-A-I-N (this made it much easier for me to remember the causes)
