Aden is controlled by the Saudi-led coalition in Yemen, whose main partners are continuing to ship American-made weapons into the country despite bipartisan outrage in Congress over the way the US is backing Riyadh in this bloody and bitter conflict.
After this, the boat's tracking system was switched off, before it appeared again under the cover of darkness in Aden on October 29.
Iranian-backed Houthis rebels control the capital of Sanaa, while the US-supported, Saudi-led anti-Houthi forces hold Aden.
The separatists were using this equipment in the fight against government forces, who are also armed with US weapons.
What this latest Saudi delivery of American weaponry to Aden proves is US military hardware is still flowing into Yemen.
The deal also designates that "medium and heavy weapons" are placed in camps under coalition supervision.
No specific measures in the deal address the illicitly distributed US-made weaponry, whose advanced technology has proven decisive on the ground. »