Abstract: As early as the 1980s, the U.S. intelligence community documented the ways in which Iran deployed chemical weapons for tactical delivery on the battlefield. Nearly 40 years later, U.S. officials formally assessed that Iran was in non-compliance with its Chemical Weapons Convention (CWC) obligations, pointing specifically to Tehran’s development …

At 3:30 p.m. on Sept. 17, someone pushed a “red button,” and a low-simmering conflict blasted open into a full-scale war. For months, Israel and the Lebanese militant group Hezbollah had been locked in a cross-border slugfest, exchanging daily attacks that forced civilians in both countries from their homes but …

A new round of airstrikes hit Beirut suburbs late Sunday as Israel intensified its bombardment of northern Gaza and southern Lebanon in a widening war with Iran-allied militant groups across the region. Palestinian officials said a strike on a mosque killed at least 19 people. A year after Hamas’ Oct. …