Russian President Vladimir Putin appeals to memories of the Soviet Union’s Great Patriotic War against Nazi Germany to justify his invasion of Ukraine.

In her September 2, 1939, My Day column, Eleanor Roosevelt reacts to the news of Germany's invasion of Poland, sharing her dismay at Adolf Hitler's actions and expressing sorrow for the European nations facing the crisis.

Marking the 80th anniversary of the Warsaw Ghetto Uprising, The National WWII Museum connects two instances of remorse for Nazi criminality by leading German politicians.

Theodor Dannecker helped Adolf Eichmann administer a continent-wide genocide.

On January 20, 1942, a group of Nazi leaders met to coordinate a continent-wide genocide.