By Timour Azhari RIYADH, July 27 (Reuters) - Yemen's Houthi Movement aims to replicate Iran's Hormuz Strait strategy in the Red Sea by disrupting shipping in the Bab el-Mandeb and hasbeen emboldened by an insufficient international response, Yemen's top diplomat said on Monday. "The Houthis want to copy the Iranian model and this will shut down two main straits, the gateways into the Gulf and Red Sea," Yemeni Foreign Minister-designate Afrah Al-Zouba said, speaking to a small group of journalists at the Yemeni embassy in the Saudi capital, Riyadh.