NYT (Gift Article): Behind Enemy Lines, Ukrainians Tell Russians ‘You Are Never Safe.’ “They sneak down darkened alleys to set explosives. They identify Russian targets for Ukrainian artillery and long-range rockets provided by the United States. They blow up rail lines and assassinate Ukrainian officials they consider collaborators with the Russians. Slipping back and forth across the front lines, the guerrilla fighters are known in Ukraine as partisans, and in recent weeks they have taken an ever more prominent role in the war.” (I know the type.)