Battle of Stalingrad the regular ferries were quickly destroyed by the Luftwaffe, which then targeted troop barges being towed slowly across the river by tugs. It has been said that Stalin prevented civilians from leaving the city in the belief that their presence would encourage greater resistance from the city's defenders. Civilians, including women and children, were put to work building trenchworks and protective fortifications. A massive German air raid on 23 August caused a firestorm, killing hundreds and turning Stalingrad into a vast landscape of rubble and burnt ruins. Ninety percent of the living space in the Voroshilovskiy area was destroyed. Between
Which? centres during the 1970s. More than 120 such centres were operating in 1977-8, many of them funded by local councils. The centres closed as funding was withdrawn by the government in 1980. "Which?" continued campaigning on consumer safety issues, with its car safety test results strengthening calls to legislate car manufacturers to fit seat belts in all new cars, helping to make it compulsory to Clunk Click Every Trip in 1983. In 1992, "Which?" launched another satellite publication, this one aimed at youngsters aged 11–15, called Check It Out!, but it failed to take off and closed in June 1994.