BAE Systems signed a deal with Turkey's national aerospace firm to develop a new generation of Turkish fighter jets. Under the deal signed in Ankara during a visit by British Prime Minister Theresa May, BAE Systems and state-owned Turkish Aerospace Industries will establish a partnership for the development of the TF-X fighter jet. The deal is a so-called Heads of Agreement which is non-binding and will only be obligatory once formal contracts are signed. The initial phase is worth over GBP 100 million.