Bottom Line Up Front
- Between 23 March and 2 April, the Iran conflict entered its sixth week with no ceasefire in place.
- Pro-Iranian militias conducted multiple fiber-optic FPV drone strikes on US assets at Victory Base Complex (VBC) near Baghdad, destroying a UH-60/HH-60M Black Hawk helicopter and an AN/MPQ-64 Sentinel radar: the first confirmed FPV kills of US military aircraft and air defense equipment in any theatre.
- US-Israeli strikes continued against Iran's missile infrastructure, leadership, and industrial sites, with an estimated three-quarters of Iranian missile launchers now degraded. Iran struck Bahrain, Kuwait, Saudi Arabia, the UAE, and Israel, though overall missile volumes dropped over 90% from opening-day levels.
- Houthi forces entered the conflict on 28 March, firing ballistic missiles at Israel and announcing joint operations with Iran and Hezbollah, raising the prospect of a second chokepoint closure at Bab al-Mandab.
- The IRGC formalised a tolled transit corridor through the Strait of Hormuz; Lloyd's List assessed that 71% of all transiting vessels since 1 March had Iranian ties, with shadow fleet vessels at 88% of traffic in the final week of March. Brent crude peaked at $116/bbl on 30 March before falling sharply toward $101/bbl by 1-2 April on ceasefire optimism.
- Trump claimed Iran's president had requested a ceasefire on 1 April; Iran denied this. Trump is scheduled to deliver a prime-time national address on the conflict and has indicated the US could exit within two to three weeks. The April 6 deadline on energy infrastructure strikes remains the most significant near-term escalation node.
What We've Observed
UAS/Counter-UAS Threat Developments: FPV Drone Strikes on US Assets in Iraq
Fiber-optic FPV drones are small, agile unmanned aircraft using a physical cable spooled during flight, providing an intercept-resistant control link with zero RF emissions. Units cost as little as $500, creating a cost asymmetry of up to 36,000:1 against destroyed assets. Current systems operate at ranges of 20 to 50 kilometres. Primary actors are Kataib Hezbollah and affiliated factions under the Islamic Resistance in Iraq umbrella with IRGC technical support.
In early March, a fiber-optic FPV drone flew over VBC without opposition, manoeuvring while searching for targets before striking a concrete hangar door with no significant damage. The drone flew the entire approach uncontested, establishing that base air defenses were not configured for this threat profile. On 24-25 March, footage confirmed two distinct FPV strikes: one destroyed a parked HH-60M MEDEVAC helicopter (assigned to C/2-4 CAB, 4th Infantry Division); the other destroyed an AN/MPQ-64 Sentinel SHORAD radar in operating mode. No interception attempt, personnel response, or electronic countermeasure activation was visible in either video. Weather differences confirm at least two separate attack events. The Islamic Resistance in Iraq claimed 21 operations targeting US positions across Iraq in a single 24-hour period.
US-Israeli Strike Activity (23 March - 2 April)
The IDF conducted over 50 strikes on 23-24 March targeting ballistic missile sites in northern and central Iran, bringing the total above 600 strikes against missile infrastructure since the war began. Heavy bombardment of Tehran continued through 28-29 March including civilian areas and Parchin. Iran reports damage to at least 120 historical sites. Israel announced the killing of IRGC Navy commander Rear Admiral Alireza Tangsiri in a targeted airstrike. US strikes on PMF bases continued; a strike in Anbar Province on 24 March killed Anbar Operations Commander Saad al-Bajili and at least 13 PMF members. US forces have conducted dozens of airstrikes across Iraq since 28 February, with Iraqi officials estimating approximately 106 people killed.
Iranian Retaliatory Strikes and Houthi Entry (23 March - 2 April)
Iran maintained strikes across the region, though overall volumes dropped over 90% from opening-day levels due to launcher suppression and degraded command structures. Cumulative UAE totals reached 414 ballistic missiles, 15 cruise missiles, and 1,914 UAVs. On 27-28 March, Iran struck Prince Sultan Air Base in Saudi Arabia, injuring at least 29 US soldiers (five seriously) and damaging an E-3 Sentry AWACS aircraft. Kuwait reported a water and electrical plant struck on 30 March, killing one worker. Iran used cluster submunitions against Israeli residential areas. Iran launched two IRBMs at Diego Garcia; neither struck the base. Qatar shot down two Iranian Su-24 bombers, the first manned aircraft shootdown of the conflict.
On 28 March, the Houthis entered the conflict, firing two ballistic missiles at Israel (both intercepted). On 1 April, they announced a third barrage in a joint operation with Iran and Hezbollah. European naval task force Operation Aspides confirmed readiness for resumed Houthi attacks on commercial shipping. Bloomberg reported Iran is pushing the Houthis to prepare for a renewed Red Sea campaign contingent on further US escalation. A senior Houthi official warned that closing the Bab al-Mandab is a viable option. The Houthis have been advancing toward rival-held territory on Yemen's southwest coast, positioning for potential Bab al-Mandab operations. Saudi Arabia has rerouted approximately 5 million barrels per day to Yanbu on the Red Sea, which sits within Houthi strike range.
Strait of Hormuz Transit and Maritime Developments
The IRGC formalised a tolled transit corridor past Larak Island where personnel verify documentation and collect fees in yuan and cryptocurrency. Lloyd's List assessed that 71% of all vessels transiting since 1 March had Iranian ties; shadow fleet vessels reached 88% of traffic in the final week of March. From 1-30 March, only 195 crossings were recorded (down 95% from 2,652 in the same period in 2025). On 30 March, two COSCO container vessels (CSCL Indian Ocean and CSCL Arctic Ocean) completed eastbound transits, the first major Chinese container ships since the war began. Iran granted transit access to ships from China, Russia, India, Iraq, Pakistan, Malaysia, and Thailand, and agreed to allow humanitarian and fertiliser shipments. At least 24 commercial vessels have been struck since 1 March; seven seafarer fatalities confirmed, with an estimated 20,000 seafarers trapped aboard vessels in the war zone.
Economic Disruption
Brent crude peaked at $116/bbl on 30 March (its largest monthly gain on record) before falling sharply toward $101/bbl by 1-2 April on ceasefire optimism. The IEA characterised the Hormuz disruption as the largest supply disruption in the history of the global oil market. US regular gas hit $4.06/gallon on 1 April. The Philippines declared a state of emergency with 40-45 days of petroleum supply remaining. The ECB warned of stagflation; Shell warned Europe could face fuel shortages by April. Trump threatened to obliterate Iran's power plants, oil wells, and Kharg Island if a deal is not reached; the April 6 deadline on energy infrastructure strikes remains in effect. Amnesty International has denounced the threats against power stations as a potential war crime.
Diplomatic and Political Developments
Pakistan confirmed its mediator role; Iran's Foreign Minister Araghchi stated exchanges through mediators do not constitute negotiations. Tehran rejected the US 15-point peace plan. On 29 March, Pakistan hosted four-way talks with Saudi Arabia, Egypt, and Turkey on Hormuz reopening. On 1 April, Pakistan and China issued a joint ceasefire call. The UK announced a 35-nation virtual meeting on Hormuz. Iran appointed IRGC hardliner Zolghadr as SNSC Secretary on 24 March, narrowing the pool of pragmatic interlocutors.
On 1 April, Trump claimed Iran's president had requested a ceasefire; Iran's Foreign Ministry called this 'false and baseless.' The IRGC stated the Strait is 'fully' under its control. Trump told reporters he expects the conflict to end within two to three weeks and is scheduled to deliver a prime-time national address. VP Vance privately told intermediaries Trump is 'impatient' to reach a deal. However, Trump also told the Telegraph he is considering US withdrawal from NATO over allied criticism of the war. An estimated 1,937 people have been killed in Iran and 13 US service members since 28 February.
Why This Matters
The fiber-optic FPV strikes on VBC represent the operationalisation of a threat vector that current US base defense architecture cannot defeat. These drones produce no RF emissions, are immune to GPS jamming, and fly at altitudes and speeds that challenge close-in weapons systems in urban terrain. The Sentinel radar's destruction removes the primary sensor designed to detect this threat. The militia's 21+ strikes in 24 hours indicates an organised campaign, not opportunistic harassment.
The Houthi entry introduces a second maritime chokepoint risk at maximum vulnerability. If Houthis escalate to commercial shipping attacks at Bab al-Mandab, global shipping faces simultaneous closure of the two most strategically important maritime passages in the world. Saudi Arabia's 5 million barrels per day rerouted to Yanbu sits within Houthi strike range. The IRGC's tolled passage system has matured into a de facto customs regime over international waters, with yuan/crypto payments and flag-swapping arrangements establishing precedents that could outlast the conflict.
The contradiction between the April 6 strike deadline and simultaneous ceasefire signalling creates strategic ambiguity. Any strike on Kharg Island would likely trigger Iranian retaliation against Saudi Aramco, Qatari LNG, UAE refining, and Gulf desalination infrastructure. However, Trump's rhetoric about exiting within weeks and distancing the US from the Hormuz problem introduces a competing de-escalation trajectory that complicates Iranian decision-making.
What's Next?
FPV drone attacks on VBC are likely to increase in frequency and target complexity. The Islamic Resistance in Iraq has a validated template; follow-on strikes targeting fuel storage, additional radars, or aviation assets should be anticipated. Pakistan-China mediation and the UK-hosted 35-nation meeting indicate broadening diplomatic engagement. Watch whether Iran expands transit authorisations as a de-escalation gesture. Trump's prime-time address and two-to-three week exit timeline will set the diplomatic tempo. If the April 6 deadline passes without strikes or a deal, US credibility on future ultimatums diminishes. The convergence of the April 6 deadline, Houthi escalation risk, broadening mediation, and the IRGC FPV campaign creates a compounding risk environment where miscalculation at any node could drive escalation faster than diplomacy can respond.
Key Indicators to Monitor
- US emergency C-UAS deployment announcement for VBC or Baghdad-area bases
- Additional FPV drone footage targeting aviation or critical base infrastructure
- Houthi escalation to commercial shipping attacks at Bab al-Mandab
- Outcomes from Trump's 1 April national address; any shift in Hormuz-as-precondition stance
- Trump strike order or further extension ahead of April 6 deadline
- Iran expansion or restriction of Strait transit access as indicator of diplomatic intent
- UK 35-nation meeting and Pakistan-China mediation track outcomes
- Brent crude price trajectory as a barometer of ceasefire credibility
- NATO alliance dynamics following Trump's withdrawal threats
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