"Lieutenant Halvorsen and his two crewmen joined with fellow American airmen to drop a total of 23 tons of candies, chocolate and chewing gum wrapped in tiny parachutes from their planes..."

"... while preparing to touch down at Tempelhof airfield with vast quantities of other supplies in an effort to break a Soviet land blockade of Berlin’s Allied-occupied western sectors.... A 9-year-old named Peter Zimmerman sent him a homemade parachute and a map providing directions to his home for a candy drop. Lieutenant Halvorsen searched for the house on his next flight but couldn’t find it. ... Peter sent another note reading: 'No chocolate yet.... You’re a pilot... I gave you a map.... How did you guys win the war anyway?' Lieutenant Halvorsen sent Peter a chocolate bar in the mail. 'Gail Halvorsen enchanted the children of Berlin,' recalled Ursula Yunger, who had been one of those children and later settled in the United States. 'It wasn’t the candy,' she told The Tucson Citizen in 2004. 'It was his profound gesture, showing us that somebody cared.' Ms. Yunger had met Mr. Halvorsen for the first time at a reunion of airlift veterans in Tucson in September 2003. 'I was just shaking,' she said. He hugged her and handed her a Hershey bar."

From "Gail Halvorsen, ‘Candy Bomber’ in Berlin Airlift, Dies at 101/Lieutenant Halvorsen came up with the idea to drop candies, chocolate and chewing gum for the children of West Berlin during a tense Cold War standoff" (NYT).