Question: What is the name of this series of mass executions during World War II, which, along with Sambor Ghetto, was anenexed to the Ukranian SSR?
Sentence (from "Sambor Ghetto"): Sambor Ghetto (Polish: "getto w Samborze" ) was a Jewish World War II ghetto established in March 1942 by the "Schutzstaffel" ("SS") in the prewar Polish city of Sambor in the south-eastern region of Kresy (now Sambir, Ukraine).
Relevant evidence: Yes