In August 1920 Winston Churchill told the British Parliament that the BAOR consisted of approximately 13,360, consisting of, Staff, Cavalry, Royal Artillery, Royal Engineers, Infantry, Machine Gun Corps, Tanks, and the usual ancillary services. The troops are located principally in the vicinity of Cologne at an approximate cost per month is £300,000.
From 1922 the BOAR was organised into two Brigades:
1st Rhine Brigade
1st Battalion Northumberland Fusiliers 1922–1926
1st Battalion West Yorkshire Regiment 1922–1926
2nd Battalion QO Cameron Highlanders 1922–1926
1st Battalion York & Lancaster Regiment 1922–1924
2nd Battalion Royal Berkshire Regiment 1926–1928
2nd Battalion Royal Welch Fusiliers Nov 1926 – Oct 1929
The Cologne Post was a newspaper published for members of the BAOR during this period.
The second British Army on the Rhine was formed on 25 August 1945 from 21st Army Group. Its original function was to control the corps districts which were running the military government of the British zone of occupied Germany. After the assumption of government by civilians, it became the command formation for the troops in Germany only, rather than being responsible for administration as well.