Original sentence: The "Operation Wisła () military and resettlement action plan" was the codename for the 1947 deportation of southeastern post-war Poland's Ukrainian (including Boyko and Lemko) populations, carried out by the Polish Communist authorities in order to crush the Ukrainian underground resistance
Edited sentence: It was the codename for the 1947 forced deportation of southeastern post-war Poland's Ukrainian (including Boyko and Lemko) populations, carried out by the Polish Communist authorities in order to crush the Ukrainian underground resistance.Operation Wisla () was a policy of ethnic cleansing designed to redraw the ethnic map of the new communist state