The Yemen-based Houthi movement has issued threats to block the strategic
Bab al-Mandab Strait, with some reports as of April 16, 2026, indicating potential actions could begin as early as “tomorrow afternoon”. These threats are largely framed as a “trumpcard” to be used in response to any escalation in the ongoing Iran-US-Israel conflict, specifically if Gulf nations join military operations against Iran.
Current Threat Status
- Timeline: Reports from April 16, 2026, cite warnings from Iranian-linked figures that vessels attempting to pass through the strait starting tomorrow afternoon (April 17) should expect threats “from all sides,” with initial steps to block the passage potentially beginning at noon.
- Conditions for Blockade: Houthi officials have stated that closing the strait is a “viable option” if US-Israeli aggression against Iran and
escalates savagely, or if any Gulf state becomes directly involved in military operations supporting the US or Israel.
- Strategic Intent: The Houthis describe their objective as preventing the
from being used militarily against any Muslim country. They have signaled they would specifically target vessels belonging to states carrying out strikes on Iran, Lebanon,