Bradley Manning will be eligible for parole after serving one third of his sentence, which will be reduced by the time he has already served in prison plus 112 days.
Defence attorneys had not made a specific sentencing request but pleaded with Judge Colonel Denise Lind not to "rob him of his youth."
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The royal told GQ Magazine: "I would love her to have met Catherine and to have seen the children grow up."
Police said they were called to an incident at Hamerton Zoo in Cambridgeshire but gave no further details apart from no animals escaped.
A man's body has been discovered in the sea off the Kent coast.