An official ceremony to hand over to Israel a Dolphin-class submarine, which can carry nuclear weapons, took place in the German city of Kiel, according to Rianovosti. The German-made submarine, named Tanin ("alligator" in Hebrew), is due to enter service in 2013, when all tests are completed. The Tanin is the fourth submarine of the Israeli Defense Forces (IDF), and one of the country’s most expensive defense contracts. Its construction costs are estimated at $500 million, with one third being subsidized by the German government. "The Navy and the submarine fleet constitute a deterrent, protective and strategic arm for the IDF and for the State of Israel," Defense Minister Ehud Barak said during the ceremony.