BERLIN: Germany has decided in principle to purchase the US fighter jet F-35 built by Lockheed Martin to replace its ageing Tornado, according to a government source. The Tornado is the only German jet capable of carrying US nuclear bombs, stored in Germany, in case of a conflict. But the air force has been flying the jet since the 1980s, and Berlin is planning to phase it out between 2025 and 2030. A German defence source told Reuters in early February that Germany was leaning toward purchasing the F-35 but a final decision has not been taken.