File - In this June 27, 2013 file photo, an Israeli Air Force Boeing 707 refuels three F15I fighter jets during an acrobatics display during a graduation ceremony in the Hatzerim air force base near the southern city of Beersheba, Israel. In an apparent message to Iran, the Israeli military said Thursday, Oct. 10, 2013,  it had carried out a “special long-range flight exercise”. The military said its squadrons practiced refueling planes in midair this week and tested the air force’s ability. The accompanying footage shows a tanker plane refueling a fighter jet midair, a key part of any long-range operation. (AP Photo/Ariel Schalit, File)