Saudi Arabia's King Abdullah bin Abdul Aziz al-Saud, right, is welcomed by Syrian President Bashar Assad, left, as they review Syrian honor guard at al-Shaab presidential palace in Damascus, Syria, Wednesday Oct. 7, 2009. The Saudi monarch arrived in Damascus for a highly significant visit that is the strongest indication yet of thawing relations between the two rival nations following years of tension. King Abdullah's visit on Wednesday is the first by a Saudi ruler since the 2005 assassination of former Lebanese Prime Minister Rafik Hariri, a close Saudi ally.