Jamieson, Fausset and Brown on Daniel 8:25

25. by peace--by pretending "peace" and friendship; in the midst of security [Gesenius], suddenly striking his blow (compare Note, see on Jr 15:8). "A spoiler at noon-day."

also ... against the Prince of princes--not merely against the Jews (Da 8:11; 11:36).

broken without hand--by God's special visitation. The stone "cut out of the mountain without hands," that is, Christ is to smite the world power image on his feet (Da 2:34), that is, in its last development (compare Da 7:11). Antiochus' horrible death by worms and ulcers, when on his way to Judea, intending to take vengeance for the defeat of his armies by the Maccabees, was a primary fulfilment, foreshadowing God's judgment on the last enemy of the Jewish Church.