Open-source intelligence · Weekly

Weekly intelligence briefings

Weekly open-source intelligence briefings synthesizing the week's major developments — patterns, trends, and strategic analysis. New briefing every week.

Weekly · October 19, 2026

Hormuz attacks persist below closure threshold as Ukraine strike tempo rises and diplomacy fails to halt regional wars

The week intensified the Iran-US maritime confrontation, with UKMTO recording 12 vessel attacks, including 10 in the Strait of Hormuz, while traffic remained roughly 70 per cent below its pre-conflict level. Ukraine and Russia expanded reciprocal strikes beyond the front line, Yemen's fighting continued to threaten Red Sea approaches, and Sudan, the Sahel and the West Bank showed persistent civilian harm without a corresponding diplomatic breakthrough. A US strike on Iran before 3 November remains unlikely, but the post-election strike risk has risen to roughly even odds because of reported force movements and contingency planning.

Weekly · October 12, 2026

Maritime confrontation intensifies as Hormuz enforcement, Houthi-Saudi strikes and regional pressure widen

The US-Iran maritime confrontation intensified between 5 and 12 October, with CENTCOM reporting that US forces disabled the Panama-flagged M/V Ocean Molica in the Gulf of Oman, UKMTO recording 11 commercial-shipping attacks in the seven-day period ending 7 October, and Kpler estimating Hormuz crude flows at 8.5 million barrels per day, roughly 40 per cent below normal. Houthi attacks on Saudi targets created a second escalation pathway, but the supplied reporting does not establish a closed Strait of Hormuz, an imminent US strike on Iran, or authorised direct US combat against the Houthis. Confidence is moderate in this bottom-line assessment because maritime incidents are multiply reported, while attribution and traffic measures remain disputed.

Weekly · September 28, 2026

Hormuz traffic remains severely restricted as US-Iran confrontation, reciprocal strikes and maritime coercion persist

US Central Command and the Iranian Revolutionary Guard Corps Navy are very likely to remain in an active maritime confrontation through 5 October 2026, defined by tanker incidents, vessel redirections, Iranian transit penalties and continuing military repositioning. Commercial traffic through the Strait of Hormuz is very likely to remain severely restricted, with Kpler recording 17 commodity vessels over one recent weekend against a pre-war reference of roughly 125 comparable vessels per day, although broader US shipping data recorded more than 30 vessels per day and therefore indicate that the waterway is not demonstrably closed.

Weekly · September 21, 2026

Hormuz remains selectively open as Ansar Allah widens Saudi pressure and Russia-Ukraine strikes reciprocate

US Central Command and the Iranian Revolutionary Guard Corps Navy are very likely to remain in an active maritime confrontation through 5 October 2026, while Strait of Hormuz traffic stays severely reduced but not demonstrably halted. Ansar Allah, also known as the Houthis, is likely to retain the ability to threaten Saudi targets and shipping from positions at or near Mokha port and Mayyun Island, also known as Perim, while Russia and Ukraine are very likely to sustain reciprocal deep strikes without independently corroborated evidence of a physical attack on NATO territory. Confidence is moderate because activity is corroborated by maritime monitors, UN agencies, commercial tracking and major media, whereas attribution, damage and territorial-control claims often rely on belligerent or single-source reporting.

Weekly · September 14, 2026

Hormuz Stays Severely Constrained as Houthi Partial Control and Western Ukraine Strikes Raise Spillover Risk

US-Iran maritime confrontation is very likely to continue from 14 through 28 September 2026, with moderate confidence, while commercial traffic through the Strait of Hormuz remains very likely to stay severely constrained but not fully closed. Ansar Allah likely has a military presence and partial tactical control at Mokha, Dhubab and Mayyun, also known as Perim, but the evidence does not establish uncontested control of the Bab al-Mandab. Russia's 13 September strikes on western Ukrainian transport infrastructure, including a train locomotive roughly 2 kilometres from the Polish border, raise the risk of miscalculation without establishing an attack on Poland or NATO territory.

Weekly · September 7, 2026

US-Iran Warship and Tanker Exchange Intensifies, Hormuz Traffic Falls to a Fraction of Baseline

Very likely, with moderate confidence, direct US-Iran maritime exchanges intensified between 5 and 6 September, when the IRGC reported missile fire against two US Navy vessels and US Central Command reported strikes on three Iranian tankers. Strait of Hormuz traffic is very likely to remain severely constrained over the next 14 days, but the supplied evidence does not establish a complete closure. Russia-Ukraine strikes, Houthi pressure near Bab al-Mandab, Sudanese civilian harm, Niger's military vulnerability and European Russian-linked hybrid pressure also persisted.

Weekly · August 31, 2026

Hormuz Stays Functionally Restricted as Niamey Mutiny Ends and Strike Tempo Rises

Very likely, with moderate confidence, the week's main trajectory was continued cross-theatre pressure without a confirmed decisive escalation: the Strait of Hormuz remained functionally restricted rather than demonstrably closed, Russia and Ukraine sustained high-volume strikes, and Niger's military government likely contained the Niamey mutiny. Gaza, southern Lebanon, the Red Sea and European hybrid activity remained active, while no new armed incident around Taiwan or direct Russian attack on NATO was established.

Weekly · August 24, 2026

Hormuz traffic stays restricted as US-Iran pressure, Red Sea attacks and Ukraine strikes continue

Very likely, with moderate confidence, ordinary commercial traffic through the Strait of Hormuz will remain materially below pre-war levels through 7 September 2026 as Iranian passage controls, US Central Command enforcement and conflicting claims over tanker movements persist. US-Iran and Israel-Iran hostilities, Israeli operations in southern Lebanon and Syria, Ukraine-Russia long-range strikes, and JNIM and FLA pressure on Malian forces continued during 17 to 24 August, but the supplied evidence does not establish a complete Hormuz closure, a new PLA armed operation around Taiwan, verified RSF battlefield gains, or a confirmed Sudan-Chad cross-border attack.

Weekly · July 13, 2026

US‑CENTCOM strikes 8-12 July compress Strait of Hormuz traffic; Maersk limited Suez return; JNIM offensive in Mali, Ukraine deep strikes, RSF consolidation (8-13 July 2026)

Very likely (70-85%), confidence: moderate, successive US CENTCOM strike waves inside Iran on 8-12 July 2026 and Iranian missile/drone reprisals have materially reduced commercial transits through the Strait of Hormuz and raised shipping risk across Hormuz and the southern Red Sea. Very likely (70-85%), confidence: moderate, coordinated JNIM and Azawad Liberation Front operations in Mali (4 July) and Ukraine’s 10-11 July deep strikes against Russian energy and Azov shipping will sustain pressure on regional logistics and energy flows for the next 1-4 weeks.

Weekly · July 6, 2026

Strait of Hormuz and Red Sea contested; RSF poised to assault El Obeid; JNIM and Russia sustain high‑tempo operations, weekly 29 Jun to 6 Jul 2026

Very likely (70-90%) the Strait of Hormuz and the southern Red Sea will remain contested and hazardous to commercial shipping over the next 1 to 4 weeks, sustaining route diversions, naval escorts and elevated war‑risk premiums, moderate confidence. Very likely (75-90%) the Rapid Support Forces will launch a ground assault on El Obeid within 72 hours; if the RSF capture the city, mass civilian killings and a major humanitarian collapse are almost certain (95-99%), high confidence.

Weekly · June 29, 2026

US‑Iran strikes (25-28 June), Iran’s 30‑day Hormuz claim and mine hazards raise shipping risk; RSF reinforces El Obeid; China normalises east‑of‑Taiwan patrols

Very likely the 17-18 June Islamabad Memorandum between Washington and Tehran has effectively fractured after Iran‑linked one‑way drone strikes on merchant shipping (including the Singapore‑flagged M/V Ever Lovely on 25 June and the Panama‑flagged VLCC Kiku) and U.S. strikes on Iranian military sites on 26-28 June; the Strait of Hormuz will remain a contested, high‑risk corridor for the next 1-4 weeks, constraining throughput and keeping war‑risk premiums elevated (very likely, moderate confidence). The Rapid Support Forces are very likely to mount a ground assault on El Obeid within 1-3 weeks, creating a high risk of mass civilian casualties and a major humanitarian collapse if the city falls (very likely, high confidence).

Weekly · June 22, 2026

US‑Iran interim memorandum begins contested reopening of the Strait of Hormuz; Houthi Red Sea threats persist as Niamey airport attack and RSF build‑up raise risks

An interim US‑Iran memorandum announced 18 June 2026 has likely (65%) begun a contested, partial reopening of the Strait of Hormuz under Iran’s Persian Gulf Strait Authority permit and insurance rules; mine clearance and IRGC gatekeeping mean throughput will remain constrained and war‑risk premiums elevated in the near term (likely, moderate confidence). Separately, the 18 June 2026 assault on Niamey’s Diori Hamani International Airport, claimed by Jama'at Nusrat al‑Islam wal‑Muslimin (JNIM), and Rapid Support Forces (RSF) concentrations around El Obeid very likely (85%) increase the near‑term probability of follow‑on urban attacks in Niamey and an imminent RSF assault on El Obeid with a high risk of mass atrocities if the city is taken (very likely, high confidence).

Weekly · June 15, 2026

Houthi Red Sea ban and US‑Iran strikes keep Bab el‑Mandeb and Hormuz at crisis risk; Taiwan HIMARS, Scarborough platform raise Indo‑Pacific friction

The Houthis are very likely to enforce their 8-10 June ban on Israeli‑linked shipping in the Red Sea and Bab el‑Mandeb, sustaining operator avoidance, Suez re‑routing and higher freight and insurance costs (very likely, moderate confidence). Renewed U.S.‑Iran exchanges, including a U.S. disabling strike on the tanker M/T Settebello, have made the Strait of Hormuz a contested, high‑hazard corridor, elevating the risk of maritime miscalculation (likely, moderate confidence). Taiwan and South China Sea grey‑zone pressure intensified this week, Taiwan fired U.S. HIMARS into the Strait on 10 June and China installed a floating platform at Scarborough Shoal, increasing the near‑term chance of short, dangerous encounters at sea (likely, moderate confidence).

Weekly · June 9, 2026

2-9 Jun 2026: PRC gray‑zone pressure near Taiwan; Houthi Red Sea ‘ban’ resumes; Ukraine deep strikes; RSF retain Darfur

Very likely escalation in two maritime corridors: PRC/China Coast Guard activity around Taiwan’s southern/eastern approaches and Houthi/Ansar Allah’s 8 Jun ‘complete ban’ on Israeli navigation in the Red Sea, while Ukraine expanded deep strikes and RSF almost certainly held Darfur. Maritime miscalculation and trade‑disruption risk is very likely elevated into July (moderate confidence).