Lunca massacre
1941 CE.
Shown on the map at 48.167°, 26.289°.
Hundreds of civilians (mostly ethnic Romanians) were massacred on 7 February 1941 when Soviet Border troops opened fire on them while they were attempting to forcefully cross the border from the Soviet Union to Romania, near the village of Lunca, now Lunka in Chernivtsi Oblast, Ukraine. Although there are no official statistics, it is estimated that about 600 people were killed.
Text from the Wikipedia article Lunca massacre, licensed CC BY-SA 4.0.