They do not always dress as soldiers. Prince William is Colonel of the Irish Guards most of the senior Royals have similar appointments.
Barnes; contrary to your silly comment they have mostly attended their Country's Military Academy and are entitled to the Uniform. It is symbolic of Military loyalty to the Monarch as much as anything else. Idi Amin Wore military uniform as Dictator of Uganda but he was nothing more than a Corporal in the British Colonial Constables until he took over and promoted himself.
Qaddafi in Libya went from Army Captain or Major, took over and promoted himself to Colonel but never to General. Reporters said he told them "I would look arrogant if I made myself a General; Colonel is enough." trying to seem 'reasonable' for the people. Other reports said he claimed "In Libya, Sargeant, Major and Colonels SHOOT Generals.
Colonel is enough". ""Royal"" Dictators, who are appointed by overthrow wear their Uniforms so the Military under- stand WHO GIVES THE ORDERS and think twice before trying to overthrow the person in charge.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.