The 3rd Royal Tank Regiment (3 RTR) was an armoured regiment of the British Army until 1992. It was part of the Royal Tank Regiment, itself part of the Royal Armoured Corps. It originally saw action as C Battalion, Tank Corps in 1917. The British Army is the land armed forces branch of the British Armed Forces. ... The Royal Tank Regiment is a unit of the British Army (formerly the Tank Corps and Royal Tank Corps). ... The Royal Armoured Corps (RAC) is currently a collection of ten regular regiments, mostly converted from old horse cavalry regiments, and four Yeomanry regiments of the Territorial Army. ...

In 1942, it briefly amalgamated with the 5th Royal Tank Regiment, as the 3rd/5th Royal Tank Regiment, returning to its previous title a month later.

In 1959, it amalgamated with the 6th Royal Tank Regiment without change of title.

In 1992, it amalgamated with the 2nd Royal Tank Regiment. The 2nd Royal Tank Regiment (2 RTR) is an armoured regiment of the British Army. ...

References

• 3rd Royal Tank Regiment at regiments.org