Iranian Nuclear Program

Kurdish separatists say their campaign in Iran will go on

The main Kurdish insurgent group in Iran will keep up its guerrilla campaign against security forces "to protect and defend" Kurds living there, its deputy leader said, calling the fight necessary after the Islamic Republic's nuclear deal with world powers.

A string of recent attacks by the Democratic Party of Iranian Kurdistan mark the end of a 20-year cease-fire between its fighters and Iran, though Kurdish separatists have agitated for freedom for decades in the country's northwest.

This campaign comes as Kurdish power has grown elsewhere. Syrian Kurds have carved out a swatch of territory amid that country's civil war. Iraq's Kurds have also effectively...