High Quality Content by WIKIPEDIA articles! The Foibe killings refers to the killings that took place mainly in Istria during and shortly after World War II from 1943 to 1949, perpetrated mainly by the Yugoslav Partisans. This term includes by extension killings in other subterranean formations, such as the Basovizza 'foiba', which is not a true foiba but a mine shaft. The name derives from a local geological feature, a type of deep karst sinkhole called a foiba