Correct Answer : Second World War
In 2004, the UN General Assembly declared 8–9 May as a time of remembrance and reconciliation for those who lost their lives during the Second World War.
UNGA conducts solemn meeting with its member countries, to pay tribute to all victims of the war. US describes the war as “one of the most epic struggles for freedom and liberation in history,” with 40 million civilians and 20 million soldiers dead.