 Complete the following phrase:  Military cooperation between Israel and Iran had been extensive since the 1960s, under the shahs regime. After a brief rupture of relations when Ayatollah Sayyid Ruhollah Musavi Khomeini came to power in 1979, cooperation resumed. The Israeli minister of defense in 1982 acknowledged the negotiation of an arrangement worth US28 million, including spare parts for United States-manufactured airplanes and tanks in the early 1980s. The Israeli motivating factor was the belief that it was to Israels strategic advantage to help Iran in its 