Yemen's internationally recognised government says its forces killed at least 1,150 Houthi fighters in roughly 2,000 targeted operations over 24 hours as part of "Operation Dawn of Yemen." Colonel Majed Abdullah al-Nazili, the military spokesman, claimed destruction of Houthi ammunition dumps and at least 180 combat, transport, and supply vehicles, with ground forces "continuing to advance their assault." Al Jazeera could not independently verify the claims. The operational focus is the Bab al-Mandeb strait — the narrow passage controlling Red Sea shipping — and the Red Sea coastal cities of Mocha and Dhubab. The Houthis seized the area in September, effectively taking control of the strait, though both sides claim dominance over the shipping lanes. Recapturing this chokepoint is the stated objective of the Saudi-backed offensive. The escalation follows Saturday's attack on King Khalid International Airport in Riyadh that killed and injured several people and grounded flights. The Houthis had not claimed responsibility at time of reporting, but the Iran-aligned group has warned aviation companies to avoid Saudi airspace — exempting only Mecca and Medina — declaring any aircraft a target. President Trump told reporters he would "make a decision soon" on whether the US would join strikes against the Houthis. The conflict is actively metastasising beyond Yemen and Saudi Arabia. The Houthis have explicitly threatened Pakistan with ballistic missile strikes and attacks on Pakistan-flagged vessels in the Red and Arabian seas if Islamabad engages militarily on Saudi Arabia's behalf. This expansion from a Yemen civil war proxy fight into a multi-state confrontation across two seas marks a significant widening of the threat envelope. Baraa Shiban, an associate fellow at the Royal United Services Institute, described the situation in blunt terms: "There is no mediation happening this time — there are no regional or local mediators that are able to cool down the situation." The absence of any diplomatic channel is the structural fact that distinguishes this phase from earlier rounds of the Yemen war. Every previous escalation had some back-channel; this one apparently does not. The Houthi threat to global shipping is not hypothetical. Their control of areas around Bab al-Mandeb — through which roughly 12% of global trade passes — gives them physical leverage over the world economy. The Saudi-backed offensive to recapture Mocha and Dhubab is as much about commercial geography as military territory. Whoever controls the strait controls insurance premiums, shipping routes, and energy prices far beyond the Red Sea. The trajectory is toward a wider, multi-front war with no off-ramp. US involvement remains an open variable — Trump's "decision soon" is deliberately ambiguous — but the expansion of threats to Pakistan, global aviation, and maritime commerce means this is no longer containable as a regional proxy conflict. The costs are being externalised to global trade, energy markets, and civilian populations across multiple countries.