 During the first Gulf War of 1991, Israel was attacked by Iraqi Scud missiles.Israeli Air Force pilots were on constant stand-by in their cockpits throughout the conflict, ready to fly to Iraq to retaliate.Diplomatic pressure as well as denial of IFF (Identify Foe or Friend) transponder codes from the United States, however, kept the IAF grounded while Coalition air assets and Patriot missile batteries supplied by the U.S. and the Netherlands sought to deal with the Scuds.