Since 1664, the Royal Marines have been considered one of the world's deadliest elite commando forces.
The Corps traces its roots back to the Duke of York and Albany's Maritime Regiment of Foot.
Starting with 1,200 infantrymen, the regiment was formed during the Second Anglo-Dutch War.
The name Marines first appeared in the records in 1672 and since then they have taken part in more battles on land and sea around the world than any other branch of the British Forces.
In 1802 they were titled the Royal Marines by King George III.
During the First World War Royal Marines earned 10 Victoria Crosses.
During the Second World War, the Royal Marines reached a peak of more than 70,000 Commandos.
They crewed 75% of D-Day’s landing craft and first wore the green beret in 1942.
Around 40% of Royal Marine recruits drop out before the end of the 32-week training, only those who complete the training are entitled to wear the green beret.
Have a look at the gallery below if you want to see some more incredible images of the Royal Marines:
All Images From MOD: Crown Copyright