He’s goal was not to fight but to inform the German emperor in the sternest way possible short of war that Germany's actions were unacceptable and risked a confrontation. Germany ignored the threat.
In 330 AD, Constantine, then the emperor of the Roman Empire, moved the seat of power to Constantinople. Then, Constantine founded a "second Rome" (the Byzantine Empire). The city was strategically placed on the trade routes between Europe and Asia, and the Mediterranean Sea and the Black Sea, making it ideal for trade and travel.
The correct answer to this question is "Iron." They made use of iron and they have skilled ironworkers. This is what made Hittites an excellent fighting machine. Thank you for posting your question. I hope that this answer helped you. Let me know if you need more help.