2 Nephi 21

Writing the words of Isaiah, he prophesied in the last days two significant events.  First -

"The envy of Ephraim also shall depart, and the adversaries of Judah shall be cut off; Ephraim shall not envy Judah, and Judah shall not vex Ephraim."  (2 Nephi 21:13)

Obviously, anciently in Isaiah's day, they hated each other.  But that would change and seems so in our day.

And second -

"...they shall fly upon the shoulders of the Philistines towards the west; they shall spoil them of the east together; they shall lay their hand upon Edom and Moab; and the children of Ammon shall obey them."  (2 Nephi 21:14)

With recent events it also seems that this prophecy is being fulfilled as the state of Israel's borders have increased and relationships have seemed to being developed with local Arab nations.