Wake up and smell the coffee. The Prince of Peace has already come and gone and you missed the boat.
World peace will be established during this age which is the Messianic Age and will last no less than 1000 years.
Isaiah 9:6-7 For unto us a child is born, unto us a son is given: and the government shall be upon his shoulder: and his name shall be called Wonderful, Counsellor, The mighty God, The everlasting Father, The Prince of Peace. Of the increase of his government and peace there shall be no end, upon the throne of David, and upon his kingdom, to order it, and to establish it with judgment and with justice from henceforth even for ever. The zeal of the Lord of hosts will perform this.
Baha’u’llah was the Prince of Peace because world peace will be established during His religious dispensation. Baha’u’llah set up a system of government and it has already been established among the Baha’is. The institutions of that government are fully operational, but still in their infancy. They will be more developed in the future as the prophecy says (increase in government).
These prophecies cannot refer to Jesus because Jesus disclaimed being the Mighty God when He called Himself “the Son of God” (John 5:18-47) and in those verses Jesus repudiates the charge that He claimed equality with God. Jesus disclaimed being the everlasting Father when He said, “my Father is greater than I” (John 14:28) and Jesus disclaimed being the Prince of Peace when He said, “I came not to send peace, but a sword” (Matthew 10:34). Jesus disclaimed bearing the government upon His shoulder when He said to “rend onto Caesar the things that are Caesar's, and to God the things that are God's” (Mark 12:17, Matthew 22:21). Jesus disclaimed that He would establish a kingdom where he would rule with judgment and justice forever when He said, “My kingdom is not of this world” (John 18:36).