Russia: Early 1940s, Ukraine, in particular…
Marauding Nazi S.S. Death squads in Ukraine (and Belarus) (generally following behind regular German Army Wehrmacht troops) commit mass murder.
Einsatzgruppen killers murder one million (1.3 million – historian Hilberg) Jews at close–range…generally “one bullet only allowed” to “conserve” Nazi ammo… many of the innocents take days to die… open–air shootings…often into mass–pits [too gruesome to relate further here].
The mass–murder at the Babi Yar (Ukraine) Ravine has achieved the most historical notoriety of the many hundreds of gruesome massacres.
The mass atrocities of the Einsatzgruppen spanning thousands of miles and hundreds of individual massacres known for their severe cruelty and sadism remain unsurpassed in Western annals.