Iranian arms and advice helped Yemen's Houthis seize key Red Sea city, sources say

By Parisa Hafezi, Mohammed Ghobari and Timour AzhariDUBAI/ADEN/RIYADH, Sept 10 (Reuters) - The lightning Houthi advance down Yemen's Red Sea coast this week came with direct guidance from Iran's Revolutionary Guards seeking to open a new front in Iran's war with the U.S., according to Yemeni government, Iranian and regional sources.By seizing the southwestern port city of Mocha, the Houthis…