Grant had won the first major victory for the Union, capturing Floyd's entire rebel army of more than 12,000. Halleck was angry that Grant had acted without his authorization and complained to McClellan, accusing Grant of "neglect and inefficiency". On March 3, Halleck sent a telegram to Washington complaining that he had no communication with Grant for a week. Three days later, Halleck followed up with a postscript claiming "word has just reached me that ... Grant has resumed his bad habits (of drinking)." Lincoln, regardless, promoted Grant to major general of volunteers and the Northern press treated Grant as a hero. Playing off his initials, they took to calling him "Unconditional Surrender Grant."