Spread across Iran, Iraq, Syria and Turkey, the ethnic group of 40 million has long sought, and fought for, greater autonomy.

Iranian Kurdish opposition groups in exile in northern Iraq tell the BBC they have plans to cross the border but deny already doing so.

The C.I.A. has given small weapons to Iranian Kurdish forces in Iraq in a covert program that began before the current war.

Iran's Kurdish minority has long pushed for the downfall of the Islamic Republic, but to make a move now, it will need help.

Kurdish opposition groups tell Fox News they're watching for opportunities to strike back against Iran as U.S. and Israeli military pressure intensifies.