Israel has conducted a drill simulating an attack on facilities in Iran, The New York Times reported Friday. Senior American officials, who preferred to remain unnamed, told the paper that the exercise included 100 F-15 and F-16 warplanes which have undertaken maneuvers in the eastern Mediterranean and near the coasts of Greece. Helicopters also joined in the maneuvers, simulating forays into enemy territory to rescue downed pilots. The aircraft used in the drill flew a distance of about 1,500 kilometers - similar to the distance between Israel and uranium enrichment facilities at Natanz, the officials said. IDF officials reportedly refused to comment on the exercise and its purpose.