ISRAEL’S defence minister has accused Iran of providing foreign militias with drone training at an airbase near the city of Isfahan, a month after Tehran came under global scrutiny over a suspected drone attack on an Israeli-managed tanker off Oman. Israel has combined military strikes with diplomatic pressure to beat back what it describes as an effort by its arch-foe, whose nuclear negotiations with the West are deadlocked, to beef up regional clout through allied guerrillas. In what his office described as a new disclosure, Defence Minister Benny Gantz said Iran was using Kashan airbase north of Isfahan to train…