4/73 (Sphinx) Special Observation Post Battery Royal Artillery is a surveillance and target acquisition unit of the British Army. It is part of 5th Regiment Royal Artillery and is based at Catterick Garrison in North Yorkshire.
4/73 (Sphinx) Special Observation Post Battery Royal Artillery is a surveillance and target acquisition unit of the British Army. It is part of 5th Regiment Royal Artillery and is based at Catterick Garrison in North Yorkshire. (en)