Veytics Intelligence
2026-09-16 · Understandingwar

Iran Update, September 15, 2026 - Institute for the Study of War

The Institute for the Study of War (ISW) and The Critical Threats Project (CTP) at the American Enterprise Institute are publishing updates Monday through Friday to provide analysis on the war with Iran. Most updates cover events from the past 24-hour period, whereas Monday updates also include events from the preceding weekend, collected after ISW-CTP’s 2:00 PM ET Friday data cutoff. ISW-CTP may publish special updates on Saturdays and Sundays if events warrant, however. The Houthis are likely expanding their strike campaign into Saudi Arabia to erode Saudi support for military operations in Yemen and compel Riyadh to accept Houthi demands.

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