Damascus sent an envoy to Tehran Sunday to justify Syria's attendance at this week's Middle East peace conference in Annapolis. Syrian Deputy Foreign Minister Faisal Mekdad arrived in Tehran and started talks with Iranian Foreign Minister Manouchehr Mottaki, state news agency IRNA reported. IRNA quoted Mekdad as saying that Syria would not allow anyone to undermine Tehran-Damascus relations.Mottaki said in the same meeting that resistance of Islamic and Arabic states "would be the only option to confront the injustice caused by Israel and its Western supporters." He added that the Annapolis conference was "just a gesture by the US and Israel, fact is however that they continue killing oppressed Palestinians."