Iranian advisor accuses us of power nuclear race Mohammad Mohabbar, advisor to Iranian leader Mujtaba Khamenei, stated on Tuesday (3) that what he called American "barbarism" is eroding trust in international institutions and leading other countries to seek nuclear deterrence. According to the Stockholm International Peace Research Institute (SIPRI), the military's stockpile of nuclear warheads increased by about 130 units worldwide between January 2025 and January 2026, reaching 9,745.