By Liam Buckler The Houthi rebels have issued a stark warning to the US stating that any attacks on Yemen will be met with a swift and powerful response. Abdel-Malik al-Houthi, the rebel leader, said: “Any American attack will not remain without a response. The response will be greater than the attack that was carried out with 20 drones and a number of missiles.” US and British forces launched a massive counter-attack on Thursday, targeting over a dozen sites used by the Iranian-backed Houthis in Yemen. The strikes were carried out using Tomahawk missiles launched from warships and submarines,…