A military judge has found the American soldier Bradley Manning not guilty of aiding the enemy, but guilty of espionage and several other lesser charges relating to the documents he handed to WikiLeaks.
The 25-year-old faces years in prison. Sentencing comes later.
The intelligence analyst leaked thousands of secret reports including battlefield information from the wars in Afghanistan and Iraq.
The US government said it was a serious breach of national security. Activists praised Manning for exposing dubious military operations.