The story: The war of words between Tehran and Baku has escalated into a large-scale military drill by the Iranian military near the border with Azerbaijan. Amid heightened tensions—and without outright naming Azerbaijan—Iran’s Supreme Leader Ali Khamenei has warned Baku that it will be the first to suffer from accommodating foreign forces, in a thinly veiled reference to its links with Israel and Turkey. Meanwhile, Tehran has hosted the foreign minister of Armenia, which Azerbaijan last year fought a war with over the disputed Nagorno-Karabakh region...