The EU's foreign and security policy chief Javier Solana has wrapped up a two-day visit to Iran. The bloc's relations with Iran are delicately poised at the moment, and member states are split on whether to resume the "twin-track" dialogue with the country on trade and human rights. The talks were suspended in June pending assurances from Iran that its nuclear program is not a threat to world peace. The mounting pre-election tensions between Iran's conservatives and reformers have now emerged as another complicating factor.