Complex sentence: Avigdor Eskin was raised in an assimilated Jewish family in Moscow, where he was first arrested at the age of 13 as a result of protesting the expulsion of Russian dissident writer Alexander Solzhenitsyn and the Soviet policies towards Israel.
Split into simpler sentences: Avigdor Eskin was raised in an assimilated Jewish family in Moscow. He was arrested first time in his life at the age of 13 protesting against the expulsion of Russian dissident writer Alexander Solzhenitsyn and against Soviet policies towards Israel.