The brigade was reconstituted as a result of British troops being sent to the Western Front during the emergency following the German March 1918 Spring Offensive.

In late 1941 160th Brigade, and the rest of the 53rd Division, were sent to Southeast England, where they began years of training for Operation Overlord, the planned Allied invasion of Northern France.

He had just returned to the UK after a successful year commanding the lorried infantry brigade of the famous 7th Armoured Division in North Africa.

General Sir Bernard Montgomery regarded Whistler as 'the best and most experienced Brigadier in the British Army' and had earmarked him for a future divisional command.

Finally, in the last week of May, the brigade began moving into its concentration area at Herne Bay, ready for the invasion.

160th Brigade began loading men and equipment aboard its ships on 20 June, but that night Brig Whistler was called away to take over 3rd Division whose commander had been wounded in the early fighting in Normandy.

The 2nd Monmouths was disbanded and concurrently reconstituted as two units in TAVR II, B (South Wales Borderers) Company in the Welsh Volunteers based in Newport and in TAVR III, forming the whole unit, the Monmouthshire (Territorial) Battalion, The South Wales Borderers also based in Newport.

[9] In 1984, as a result of the 1981 Defence White Paper, many of the old disbanded territorial brigades were reformed as part of their respective regional districts.

[9] As part of these changes, 160th (Welsh) Infantry Brigade was reformed as the operational formation of Wales District with its headquarters at The Barracks in Brecon.

The battalion was equipped with the Leopard 1 main battle tank and its personnel rotated through for gunnery and/or manoeuvre training.

[20] After the end of the Cold War, the government published the Options for Change reform which saw several districts either merge or reduce in size, with some having both.