Prince Andrew, the Duke of York, attended a special parade at Battlesbury Barracks today to mark the name change of Warminster-based battalion 3 Yorks to 1 Yorks.
After today the Third Battalion the Yorkshire Regiment will cease to exist and soldiers will in future form the majority of the First Battalion.
At Warminster in Wiltshire, where 3 Yorks is based, Commanding Officer Lt. Col Zac Stenning said it's a sad day but the regiment has to look to the future.
He said a private memorial service was held earlier this week to remember 3 Yorks soldiers who were killed in Afghanistan last year - including six who died when their Warrior fighting vehicle was blown up.
3 Yorks was originally the Duke of Wellington's Regiment - with battle honours dating back to 1695 - including the Battle of Waterloo, Crimea War and both World Wars.
In Warminster today there is a ceremonial march and parade at the barracks to mark the end of the battalion.
A soldier prepares to hoist a flag on a Warrior armoured vehicle ahead of a symbolic event today for the Yorkshire Regiment.The regiment has four battalions - but after today the Third Battalion the Yorkshire Regiment will cease to exist and soldiers will in future form the majority of 1 Yorks.
A group of soldiers are hoping to raise up to £10,000 for the 3rd Battalion the Yorkshire Regiment at a charity event today.
It is being held at Hall Bower Athletic Club in Hall Bower and there will be auctions, raffles, street dancing, fireworks along with a performance by 2011 X Factor finalist Jonjo Kerr.
The Yorkshire Regiment has been hit hard by recent losses in Afghanistan.The money raised will go towards Operation Reset, which offers troops respite and rehabilitation when they return from active service.