did he serve in the military?
Yes, in the Royal Air Force and the Royal Navy.
Charles, Prince of Wales
Charles served in the Royal Air Force and, following in the footsteps of his father, grandfather and two of his great-grandfathers, in the Royal Navy. 
name two concerns of her audience that elizabeth addresses She has addressed the audience on a number of political issues like the decolonization of Africa, Brexit, Canadian patriation among others can you name some countries in which she is designated as their queen? The United Kingdom, Canada, Australia and New Zealand who was her predecessor? King George VI when did she ascended the throne? 1952 what was her contribution during world war ii? In 1945, she was appointed as an honorary second subaltern in the Auxiliary Territorial Service. She trained as a driver and mechanic and was given the rank of honorary junior commander. who did she marry? Prince Philip what are the names of their children? Prince Charles, Princess Anne, Prince Andrew and Prince Edward when was her golden jubilee? In 2002 why is this year celebrated as her golden jubilee? For completing fifty years on the throne is her husband still living? UNANSWERABLE you had mentioned her 4 children, what can you tell me about the educational background of her first child? Hill House school in London, Gordonstoun in the north-east of Scotland, Timbertop campus of Geelong Grammar School in Australia are some of the school she attended, followed by Trinity College, Cambridge.
wiki:18870522
Charles, Prince of Wales [SEP] Military training and career
Charles served in the Royal Air Force and, following in the footsteps of his father, grandfather and two of his great-grandfathers, in the Royal Navy. During his second year at Cambridge, he requested and received Royal Air Force training. On 8 March 1971, he flew himself to the Royal Air Force College Cranwell to train as a jet pilot. After the passing-out parade that September, he embarked on a naval career and enrolled in a six-week course at the Royal Naval College Dartmouth. He then served on the guided-missile destroyer (1971–1972) and the frigates (1972–1973) and (1974). In 1974, he qualified as a helicopter pilot at RNAS Yeovilton, and then joined 845 Naval Air Squadron, operating from .