evidence: Turkish jets entered Greek airspace and were intercepted by Greek jets as the defence minister, Panos Kammenos, and military chiefs flew by helicopter to the islet of Imia to drop wreaths in memory of three Greek officers killed nearby in a helicopter crash 19 years ago, the Greek defence ministry said. [...] Imia, known in Turkish as Kardak, lies just seven km (four miles) off the Turkish coast. Greece and Turkey, both members of Nato, have long disputed its sovereignty and, in 1996, came close to war over the islets.