Israeli acquaintances of General Martin Dempsey, the chairman-elect of the Joint Chiefs of Staff in the Pentagon, speak extremely highly of him. He is a pro, keeps away from politics and from self-aggrandizement, a military authority, and serious. President Barack Obama announced his appointment, which has to be approved by the Senate, four months before the term of office of Admiral Michael Mullen ends. Alongside him, and slightly above him, Dempsey will encounter a new Defense Secretary, Leon Panetta, the successor to Robert Gates who will retire at the end of the month.
Therefore the changes in leadership at the Pentagon are not merely an American story. The chance that Dempsey, at the start of his term of office, would advise Obama to attack Iran, or to permit Israel to do so, is not high. The outgoing head, Mullen, is likewise not enthusiastic about that but his ties with the IDF's general staff are close and it can be assumed that, if Benny Gantz was persuaded to sign a plan by Benjamin Netanyahu and Ehud Barak, Mullen would not be happy but would also not torpedo it.
The conclusion is that between the end of June and Gates' retirement, and the end of September and Mullen's retirement, the danger that Netanyahu and Barak will aim at a surprise in Iran is especially great, especially since this would divert attention from the Palestinian issue. As the Supreme Court explained to Moshe Katsav's lawyers, some plans for summer vacations might be canceled.