sentences:  In 1916 the CNT changed its strategy respecting the UGT, establishing new relations that allowed the two unions to initiate the general strike of 1917 jointly.The second congress of the CNT in 1919 studied the possibility of merging both organizations to unify the Spanish labor movement.That same congress approved linking the CNT to the Third International, but after Ángel Pestaña's visit to the Soviet Union, and on his advice, they broke definitively from the Third International in 1922.