73 Engineer Regiment was formed when the Territorial Army was drastically reduced in the late 1960s.

The regiment was created as a reinforcement combat engineer unit to support I (BR) Corps in Germany.

It sponsored the Robin Hood Battalion cadre, 1969-71.

In 1997 the regiment was assigned to 12 (Air Support) Engineer Brigade.

The regiment's structure changed a bit through its history, the structure just before disbandment:[2][3]A number of former squadrons served with the regiment including:[2]