The Iceland Defense Force (IDF) was a military command of the United States Armed Forces from 1951 to 2006. The IDF, created at the request of NATO, came into existence when the United States signed an agreement to provide for the defence of Iceland. The IDF also consisted of civilian Icelanders and military members of other NATO nations. The IDF was downsized after the end of the Cold War and the U.S. Air Force maintained four to six interceptor aircraft at the Naval Air Station Keflavik, until they were withdrawn on 30 September 2006. Since May 2008, NATO nations have periodically deployed fighters to patrol Icelandic airspace under the Icelandic Air Policing mission. Iceland supported the 2003 invasion of Iraq despite much domestic controversy, deploying a Coast Guard EOD team to Iraq, which was replaced later by members of the Iceland Crisis Response Unit. Iceland has also participated in the conflict in Afghanistan and the 1999 NATO bombing of Yugoslavia. Despite the ongoing financial crisis the first new patrol ship in decades was launched on 29 April 2009.