Prime Minster Shinzō Abe arrived by car and was greeted by the UK Prime Minister, Theresa May alongside Major General Commanding the Household Division, Major General Ben Bathurst.
The meeting highlighted the strong partnership the UK has with Japan in industry and in facing up to the global challenges of the 21st century.
The prestigious ceremony began with the Irish Guards presenting arms prior to The Band of the Scots Guards Band playing “Scipio”.
On marching up to the dais the Captain of the Guard saluted with his sword and, in Japanese, said “Good morning Sir. Number Two Company, 1st Battalion Irish Guards are formed up and awaiting your inspection.”
Mr Abe then proceeded to inspect the immaculate troops, walking ahead of Mrs May and Maj Gen Bathurst.