Prince Harry's appearance has once again sparked debate after he attended an Armistice Day service sporting a full-set beard.

Taking part in the ceremony at the National Memorial Arboretum he took to the podium to read Rupert Brooke's famous sonnet 'The Soldier'.

But for some, including many of those serving in the Armed Forces and veterans, it was his appearance rather than his words that prompted heated discussion.

In 2015, after an unshaven Prince Harry attended a school in full military uniform, Forces TV's Julie Knox took a close look at the issue:

Hirsute Harry: Was The Prince Too Scruffy On Parade? 
What he wears - or doesn’t - hits the headlines. From the inappropriate Nazi fancy dress to his pre-deployment Vegas state of undress, Prince Harry’s wardrobe choices make the front pages. And even when the roguish royal puts a foot wrong, his adoring army of fans forgives him.
Now, the former Captain Wales’s personal grooming has split military opinion on standards, one of the most defining and divisive topics in the Forces. 
Service personnel are drilled to pay the smartest attention to detail. Their traditional costumes, unique hallmarks of regimental history and quirky customs are what set the British military apart from other sections of society, and their counterparts around the world.
A great deal of pride is wrapped up in the collective look of a marching body of men and women, and naturally, they judge each other. It’s a tribal thing: picking holes in the look, stance, or actions of your oppos. Friendly banter.
Prince Harry visits Duke of York's Royal Military School
Prince Harry visits Duke of York's Royal Military School
The military sees this sibling rivalry as a self-licking lollipop, driving standards higher still through competition. Nobody wants to let their side down.
Cue the outpouring of comment on His Royal Highness’s facial hair when paired with ceremonial uniform - a ‘no no’ according to Army rules -subject, of course, to quirky historic exceptions: the Pioneer Sergeant, a lumberjack/engineer who fells trees ahead of an advancing unit... the “Battle Axe man”, a tall subaltern who proudly parades 74 Battery’s spoil of war from 1809 one day a year... or those whose beards and whiskers are for medical or religious reasons.
Prince Harry in Afghanistan 2008
Prince Harry in Afghanistan 2008
But do Queen’s regulations apply to the Queen’s grandson - who’s left the Army anyway? Does the fact he was making a guest appearance at a school with a military ethos make his scruffy face more or less acceptable?
It’s not the first time Prince Harry has displayed stubble in uniform. On his first deployment to Afghanistan, Second Lieutenant Wales didn’t shave when roughing it as a Forward Air Controller. But on tour, standards are relaxed.
They’re not in ‘Number Ones’ - best ceremonial dress - in the desert. Indeed, commanders even allowed British troops to become bearded to gain more street cred with their Afghan Army counterparts in Helmand. But back on the civilised parade square, clean-shaven faces are de rigeur. Unless, it would seem, you’re a royal.
HRH Prince Michael of Kent
HRH Prince Michael of Kent
Look at Prince Michael of Kent. When he visits his various regiments as honorary colonel, his distinguished beard remains. 
Photos of previous Kings in uniform with whiskers have been unearthed by staunch defenders of Prince Harry. But there are those serving and retired soldiers who have taken to Facebook to voice their disgust at the slip in standards.
King George V reigned during the First World War
King George V reigned during the First World War
Comments include: “Someone might want to remind Prince Harry he is not a Pioneer Sgt and therefore when wearing his military uniform should be clean shaven.” 
And “Beard while wearing the Queen’s uniform? Discipline that man!”
“Harry, you’re a disgrace to the uniform (shave or don’t wear it).”
But the Prince’s supporters are just as vocal: “He is wearing the uniform of an Honorary Colonel of the SCHOOL, so he is not in military uniform, and if you don't think that a Prince, who has taken time out of his busy schedule to go and chat to the kids, give them some support and words of advice and spend time with them is not leading by example, then I don't know what is.”
And “He’s too important to shave”.
“It’s all right – he got a note from his nan.”
Forces TV asked followers on Twitter for their vote - should Harry have got rid of the bristles if he was appearing on parade? It was close shave – but the beards took it, 60/40. 
The Ginger Prince can’t lose.
“Prince Harry is one of my heroes though. Total stud. Ok, shows up at parties every now and then naked - but who doesn't??”