All those Eastern people were famous for the use of the bow, the Elamites in special, Isaiah 22:6: those bows were the chief of their offensive armour, though by the chief of their might may also be meant their most mighty and strong warriors. This prophecy is probably judged to be fulfilled when the Persians made a defection from the king of the Medes, who was son-in-law to Nebuchadnezzar. Others think that this prophecy was accomplished by Alexander the emperor of Greece, or rather by his successors.
Related Commentaries of Jeremiah 49:35
Jeremiah 49:35
35 Thus saith the LORD of hosts; Behold, I will break the bow of Elam, the chief of their might.