Women hold up Yemen's national flag as they attend a rally to demand the ouster of Yemen's President Ali Abdullah Saleh outside Sanaa University March 8, 2011. Yemeni protests demanding an end to Saleh's 32-year rule spread to a tribal area considered his political stronghold on Tuesday, and military vehicles deployed in the capital. REUTERS/Khaled Abdullah (YEMEN - Tags: POLITICS CIVIL UNREST)