The video "Who Was Queen Elizabeth II?" illuminates the life and legacy of Queen Elizabeth II, offering insights into her journey from a young princess to a revered monarch. Born on April 21, 1926, Elizabeth Alexandra Mary Windsor ascended the throne under unique circumstances when her uncle, King Edward VIII, abdicated in favor of her father, King George VI. The video highlights her role during World War II, showcasing her involvement in the war effort as a mechanic and driver, and her brave encouragement through radio broadcasts. Following her father's death, she became queen at just 25, marking her coronation as a significant televised event. Throughout her reign, she was celebrated for making the British monarchy more public-facing and devoted to service and volunteerism, solidifying her place in history as the longest-serving British monarch. Her devotion to duty and influence on global affairs inspire viewers to contemplate their own contributions to the world.