A Yemeni military official says the Houthis have seized the last two Bab al-Mandab islands

Control of the islands at the Bab al-Mandab narrows the geography of the chokepoint itself, and in past episodes of contested littoral territory in this strait the transmission channel has run through war-risk insurance premia, rerouting around the Cape, and tanker freight rates rather than through physical supply loss. The strait is one of the few points where shipping disruption historically feeds directly into Brent and WTI front-month risk premia, with the front of the crude curve and refining margins tending to react before any actual flow interruption. Episodes of this kind have tended to resolve into a pattern of escalatory rhetoric, insurer repricing, and naval escort responses, with the premium fading unless attacks on tonnage actually follow. The distinction worth drawing is between symbolic territorial claims and demonstrated capacity or intent to interdict traffic; it is the latter that has historically sustained a bid. Worth noting is the sourcing: a claim from a single Yemeni military official, and competing claims over territory in this theatre have often been disputed or walked back. The follow-ons are confirmation from independent parties, any move in tanker insurance quotes, and whether coalition naval posture in the strait shifts.