Prince Harry has told his Sandhurst superiors that he will quit the Army unless he is sent to the front line with his unit. His tough stance reveals how determined he is to be in the thick of the action wherever his comrades in the Blues and Royals are sent.

The Prince and his older brother, Prince William, have long insisted they are determined to see active service with their units.

Harry, 21, was commissioned earlier this month as a second lieutenant in the Household Cavalry’s Blues and Royals, the Army’s oldest and most senior regiment. The regiment has been deployed in almost every major Army operation of the past two decades, including the Falklands, both Gulf wars, Bosnia and Kosovo.

The UK Mail on Sunday reported that Harry told senior officers at Sandhurst before passing out on April 12: “If I am not allowed to join my unit in a war zone, I will hand in my uniform.”

Clarence House commented: “Prince Harry is very clear that he is joining the Army, and the Household Cavalry in particular, to serve his country as an operational soldier. On occasion there may be some circumstances in which his presence could attract additional attention, which could lead to additional risk to those he commands or himself. In these instances it is a judgment call which would principally be made by his commanding officer.”

Earlier this month a senior Army figure said it was “eminently possible” Harry could be in a danger zone within 12 months.