SYDNEY, Rabi'I 21, 1438, Dec 20, 2016, SPA -- Australia and France signed an agreement Tuesday to build the world's largest diesel-electric submarines in the Australian industrial town of Adelaide, according to AP. Prime Minister Malcolm Turnbull and French Defense Minister Jean-Yves Le Drian signed the agreement in Adelaide, where they officially opened the Australian headquarters of DCNS, a French state majority-owned company that will design the Shortfin Barracuda subs. Turnbull described the 56 billion Australian dollar ($41 billion) contract to build 12 subs as the largest capital project in Australia's history. --SPA 13:28 LOCAL TIME 10:28 GMT www.spa.gov.sa/w294542