If you were to name a date on which the British Army could be said to have formed, when would it be? would you date it from the birth of the oldest regiments which were then incorporated into the British Army, for example the Royal Scots. Or would you put it as 1645 with the establishment of Cromwell's New model army, Britain's first proffessional Army. Or would you put it as 1707 with the union of the crowns and therefore the drawing together of already preexisting scottish and english regiments? Or some completely other date altogether?