I explained the significance of Khaybar here.
“Iranian Guardian Council Secretary Ayatollah Jannati In Tehran Friday Sermon: Islamic History is Repeating Itself Today With the Battle Between the Descendents of Ali and the Jews,” from MEMRI:
The following are excerpts from a Friday sermon in Tehran by Iranian Guardian Council Secretary Ayatollah Ahmad Jannati. The sermon aired on Iranian Channel 1 on August 4, 2006.
TO VIEW THIS CLIP, VISIT: http://www.memritv.org/search.asp?ACT=S9&P1=1223.
Ayatollah Ahmad Jannati: “God is using one of Ali’s descendents [Nasrallah] to confront the spiritual and physical descendents of Marhab of Khaybar [the Jews]. God is reviving the memories of early Islam — the memories of the conflict between Ali and the Jews of [the battles] of Khaybar and Khandaq. On one side stood Ali with a small number of Muslims, and on the other side stood the strong, rich, vain, and arrogant Jews. Ultimately, the sword of Ali did what had to be done, and he humiliated the people of Khaybar and the vain and arrogant Jews. Today, this descendent of Ali stands in the same position, and so do the descendents of Marhab of Khaybar, the Jews of Khaybar and Khandaq.”
[…]
Crowd: “Allah Akbar.
“Allah Akbar.
“Allah Akbar.
“Khamenei is the leader.
“Death to those who oppose the rule of the jurisprudent.
“Death to America.
“Death to England.
“Death to the hypocrites [Mojahedin-e Khalq] and Saddam.
“Death to Israel.”