Many in Iran’s women-led protests are calling for the removal of Ayatollah Ali Khamenei and an end to the Islamic Republic. Here’s what to know about Iran’s top political and religious authority.

Rekindling the nuclear deal with Tehran will solve one regional problem—and cause others.

The Islamic Republic of Iran may be on an accelerated schedule for revolutionary decay, at least if compared to the USSR.

Iran’s web of armed partners such as Hezbollah serves to strengthen its influence in the Middle East and could pose a significant threat to the United States and its allies in the region.

Although nuclear negotiations with Iran are resuming, the United States should plan for what comes next.