Sentence:  In each of the last , the trial marked the beginning of a <WSD>new</WSD> course : in Moscow the liquidation of the Old Bolsheviks and the tightening of Stalin 's dictatorship ; in the United States the initiation of militant anti Communism , with the repentant ex Communist in the vanguard . 
Meaning of the word marked with <WSD> tags:  not of long duration; having just (or relatively recently) come into being or been made or acquired or discovered