context: Iron Dome (Hebrew: כיפת ברזל) an air defense system with a mobile base, developed by Rafael Advanced Defense Systems, intended to intercept short-range missiles and artillery. In February of the year 2007, the Israeli Defense Minister, Amir Peretz, chose the Iron Dome system as a defensive solution to remove the danger of short-range missiles from Israel. [1] Since then the development of the system, which cost $ 210 million in cooperation with The IDF entered service in mid-2011.
question: When did Israel build the Air Protection Dome?
answers.text: 2007