Russia suffered the greatest loss of life during World War I. There were thousands of casualties on all sides suffered during the war.
Russia.
The US Army suffered the greatest losses on D-Day, particularly at Omaha Beach.
Mainly the ones under the Nazi yoke, but also many in the territories of the the Nazis' allies. The biggest losses were in Poland, the countries of the former Soviet Union, especially Lithuania, Latvia, Belarus, Ukraine - also Germany, Austria, the Czech Republic, Romania ... the Netherlands, France.
Gallipoli
those in the 'Pale of Settlement' and Poland suffered the worst.
Russia suffered the biggest losses during WW1.
Germany
The US forces in the Ardennes.
Russia.
Russia suffered the greatest loss of life during World War I. There were thousands of casualties on all sides suffered during the war.
Russia.
RuSsIa
Russia suffered the most total casualties.But in terms of percentage of of military forces it was Austria-Hungary
None for thier political beliefs. People only died in the Holocaust for being Jewish. The Nazis were responsible for killing political opponents even before they were elected (as they also suffered losses), the actions against political opponents pre-date the Holocaust and most of the actions completed by then.
The Australian cricketers suffered embarrassing losses to England, during the recent Ashes Test Match.
The US Army suffered the greatest losses on D-Day, particularly at Omaha Beach.