By 1939 Dorset & Wilts agreed to become a unified rugby football union to take part in the 1940–41 County Championships but this was postponed by the outbreak of World War II.

It works in partnership with the RFU and liaises with local authorities and other county and regional organisations to achieve this.

Its remit includes: To help achieve these aims it holds an annual conference for club officials and manages and administrates specific RFU projects including RFU funded campaigns to help clubs recruit and retain players, coaches and administrators.

The senior side regularly enters the RFU's County Championship Division 3 and have won it on three occasions, in 2010, 2011 and 2018.

In 2010 the Twin Counties won two of their three pool matches against Berkshire, Buckinghamshire and Sussex, and then defeated Oxfordshire in the semi-final.

2011 final team Replacements: In 2011 the Dorset and Wilts U20 side played 4 and won 3 in the U20 County Championship competition.