On the morning of her sixteenth birthday, Princess Elizabeth undertook her first inspection of a military regiment during a parade at Windsor Castle. She had been given the role of honorary colonel of the Grenadier Guards, which symbolized her military involvement in the war effort. When Princess Elizabeth turned 18 in 1944, she insisted upon joining the Auxiliary Territorial Service (ATS), the women’s branch of the British Army. For several years during the war, Britain had conscripted women to join the war effort. Unmarried women under 30 had to join the armed forces or work on the land or in industry. King George made sure that his daughter was not given a special rank in the Army. She started as a second subaltern in the ATS and was later promoted to Junior Commander, the equivalent of Captain. Princess Elizabeth began her training as a mechanic in March 1945. She undertook a driving and vehicle maintenance course at Aldershot, qualifying on April 14. Newspapers at the time dubbed her “Princess Auto Mechanic.” There were a wide range of jobs available to female soldiers in the ATS as cooks, telephonists, drivers, postal workers, searchlight operators, and ammunition inspectors. Some women served as part of anti-aircraft units, although they were not allowed to fire the guns. The jobs were dangerous, and during the course of the war, 335 ATS women were killed and many more injured. By June 1945, there were around 200,000 members of the ATS from across the British Empire serving on the home front and in many overseas theaters of war. While Princess Elizabeth spent the majority of her days at the training facility, it was close enough to Windsor Castle that the princess would return there each evening rather than sleep at the camp with her fellow ATS members. The King and Queen and Princess Margaret visited Princess Elizabeth at the Mechanical Transport Training Section in Camberley, Surrey, and watched her learn about engine maintenance. When describing the visit to LIFE Magazine, the Princess commented “I never knew there was quite so much advance preparation [for a royal visit] ...I’ll know another time.” On May 8, 1945, the war in Europe ended. In London, thousands of people took to the streets to celebrate, flooding Trafalgar Square and the Mall leading up to Buckingham Palace where the King and Queen greeted them from the balcony. As the light began to fade and the celebrations looked to continue into the night, Princess Elizabeth, dressed in her ATS uniform, slipped into the crowds with her sister to enjoy the festivities. In 1985, the now Queen spoke to the BBC about how she tried to avoid being spotted, “I remember we were terrified of being recognized so I pulled my uniform cap well down over my eyes.” She described the “lines of unknown people linking arms and walking down Whitehall, and all of us were swept along by tides of happiness and relief.” There are even reports that the princesses joined a conga dance through the Ritz Hotel as they celebrated with the crowds. “I think it was one of the most memorable nights of my life.” she recalled. Queen Elizabeth II died at the age of 96, leaving a big gap in royal life. Rest in peace.