Tuesday Tenth EU-Iran dialogue meeting opens in Athens, with speeches by Greek Alternate Foreign Minister Tassos Yiannitsis and Iranian Undersecretary for Foreign Affairs Ali Ahani. Talks will include bilateral cooperation on trade, energy, immigration, refugees and terrorism. The trial of 19 suspected November 17 terrorists opens again in Korydallos Prison after a recess for Easter. Thursday May Day, with labor rallies in Athens and other major cities. Twelfth annual EU-Japan summit to take place in Athens. PM Costas Simitis, European Commission President Romano Prodi and the EU’s high representative for foreign policy and security, Javier Solana, will meet with Japanese Prime Minister Junichiro Koizumi. To Friday. Friday Informal meeting of EU foreign ministers at Rhodes and Kastellorizo, with visit to Kas, Turkey. To Sunday. EU Greek presidency holds one-day conference on the information society at the Zappeion Hall. Saturday EU environment ministers to meet in Athens. To Sunday. Thessaloniki 2003 anti-EU group and others hold a demonstration against the EU environment ministers’ meeting at Old Athens University on Panepistimiou Street at noon, followed by a march to the offices of the EU and the US Embassy.