[swashboon]

But its not Yemen, its Iran that's paying for it - with money from oil smuggled past sanctions.

[meiraleal]

Smuggled? Are you implying that any deal the US does not like is illegal? Wake up. This age is over.

[dragonwriter]

Shipping from Iran to Yemen is also vulnerable, however.

[nradov]

Most of the missiles and other weapons are being smuggled in relatively small boats. It simply isn't practical to stop and search most of them. In theory the US and other nations could declare a blockade and simply sink any vessel that enters Yemeni territorial waters, but that would be a major escalation and require a lot more naval forces to be deployed