INTELLIGENCE WINDOW: 4 September 2026 – 8 September 2026
Executive Summary
- The US and Iran conducted a series of reciprocal attacks against shipping in and around the Strait of Hormuz (SoH). On 4 September, the IRGC launched ballistic missiles towards US Navy vessels, and US forces subsequently struck three Iranian crude oil carriers.
- The Iranian targeting of US Navy vessels almost certainly represents a notable escalation, and highly likely increases the risk of miscalculation.
- The secretary of Iran’s Supreme National Security Council (SNSC), Mohsen Rezaei, stated that Iran would announce a restricted zone beginning at the US naval blockade line and extending into the Persian Gulf. This likely sets the conditions for escalated Iranian anti-shipping attacks against vessels conducting ship-to-ship transfers outside of the SoH.
- Overnight 7-8 September, the Houthis conducted a large-scale missile and drone attack against targets including energy infrastructure and international airports in Khamis Mushait, Abha, Najran and Jazan in southern Saudi Arabia. The Saudi-led coalition stated that 73 civilians were injured.
- Alongside a Saudi-backed Yemeni government counteroffensive against the Houthis and almost certain regular Saudi air strikes in Yemen, these developments almost certainly confirm the full resumption of the Yemeni civil war. The risk of further escalation is high, with Saudi Arabia likely to continue its intervention and the Houthis likely to continue intensified cross-border attacks against Saudi Arabia in response.
- As of 8 September, the airspaces of Jordan, Saudi Arabia, Kuwait, Bahrain, Qatar, the UAE, and Oman are open. However, Jazan, Abha, and Najran airports in southern Saudi Arabia have recently been periodically closed due to the Houthi threat.
- The US and Iran conducted a series of reciprocal attacks against shipping in and around the Strait of Hormuz (SoH). On 4 September, the IRGC launched ballistic missiles towards US Navy vessels, and US forces subsequently struck three Iranian crude oil carriers.
- The Iranian targeting of US Navy vessels almost certainly represents a notable escalation, and highly likely increases the risk of miscalculation.
- The secretary of Iran’s Supreme National Security Council (SNSC), Mohsen Rezaei, stated that Iran would announce a restricted zone beginning at the US naval blockade line and extending into the Persian Gulf. This likely sets the conditions for escalated Iranian anti-shipping attacks against vessels conducting ship-to-ship transfers outside of the SoH.
- Overnight 7-8 September, the Houthis conducted a large-scale missile and drone attack against targets including energy infrastructure and international airports in Khamis Mushait, Abha, Najran and Jazan in southern Saudi Arabia. The Saudi-led coalition stated that 73 civilians were injured.
- Alongside a Saudi-backed Yemeni government counteroffensive against the Houthis and almost certain regular Saudi air strikes in Yemen, these developments almost certainly confirm the full resumption of the Yemeni civil war. The risk of further escalation is high, with Saudi Arabia likely to continue its intervention and the Houthis likely to continue intensified cross-border attacks against Saudi Arabia in response.
- As of 8 September, the airspaces of Jordan, Saudi Arabia, Kuwait, Bahrain, Qatar, the UAE, and Oman are open. However, Jazan, Abha, and Najran airports in southern Saudi Arabia have recently been periodically closed due to the Houthi threat.
- The US and Iran conducted a series of reciprocal attacks against shipping in and around the Strait of Hormuz (SoH). On 4 September, the IRGC launched ballistic missiles towards US Navy vessels, and US forces subsequently struck three Iranian crude oil carriers.
- The Iranian targeting of US Navy vessels almost certainly represents a notable escalation, and highly likely increases the risk of miscalculation.
- The secretary of Iran’s Supreme National Security Council (SNSC), Mohsen Rezaei, stated that Iran would announce a restricted zone beginning at the US naval blockade line and extending into the Persian Gulf. This likely sets the conditions for escalated Iranian anti-shipping attacks against vessels conducting ship-to-ship transfers outside of the SoH.
- Overnight 7-8 September, the Houthis conducted a large-scale missile and drone attack against targets including energy infrastructure and international airports in Khamis Mushait, Abha, Najran and Jazan in southern Saudi Arabia. The Saudi-led coalition stated that 73 civilians were injured.
- Alongside a Saudi-backed Yemeni government counteroffensive against the Houthis and almost certain regular Saudi air strikes in Yemen, these developments almost certainly confirm the full resumption of the Yemeni civil war. The risk of further escalation is high, with Saudi Arabia likely to continue its intervention and the Houthis likely to continue intensified cross-border attacks against Saudi Arabia in response.
- As of 8 September, the airspaces of Jordan, Saudi Arabia, Kuwait, Bahrain, Qatar, the UAE, and Oman are open. However, Jazan, Abha, and Najran airports in southern Saudi Arabia have recently been periodically closed due to the Houthi threat.









