1945 mass murders

The Holocaust, known in Hebrew as the Shoah, was the genocide of European Jews during World War II. From 1941 to 1945, Nazi Germany and its collaborators systematically murdered around six million Jews across German-occupied Europe, approximately two-thirds of Europe's Jewish population. The murders were committed primarily through mass shootings across Eastern Europe and poison gas chambers in extermination camps, chiefly Auschwitz-Birkenau, Treblinka, Belzec, Sobibor, Chełmno and Majdanek death camps in occupied Poland. Concurrent Nazi persecutions killed millions of other non-Jewish civilians and prisoners of war (POWs); the term Holocaust is sometimes used to include the murder and persecution of non-Jewish groups, such as the Romani and Soviet POWs.

massacre of Poles by Ukrainian nationalists during World War II

thumb|Timber framing|Timber framed houses thumb|upright|Church in Pechüle Treuenbrietzen () is a town in the Potsdam-Mittelmark district of Brandenburg, Germany.

extrajudicial mass killings of Italian and other local populations in Istria and Dalmatia during and after the Second World War

Greek anti communist era

War crimes by the Yugoslav Partisan Movement

Massacres in Kalimantan, Dutch East Indies by the Imperial Japanese Navy during World War II

thumb|300px|Ploština memorial Ploština was a small settlement in what is today the municipality of Drnovice in the Zlín Region of the Czech Republic. On 19 April 1945, at the end of World War II, it was burned and its people were massacred by Nazis in response to their support of the anti-Nazi resistance movement. The massacre was conducted by the German special SS unit Zur besonderen Verwendung-Kommando Nr. 31, led by Walter Pawlofski, and by the SS anti-partisan unit Josef consisting of members of Slovak Hlinka-Guard, whose headquarters was in Vizovice.