Cheltenham’s journey from the post-World War II period to the present. Post World War II to Present: Government Communications Headquarters (GCHQ): One of the most significant developments in Cheltenham’s post-war history was the establishment of the GCHQ. Originally located in Eastcote, London, during World War II, it moved to Cheltenham in the 1950s, mainly due … Continue reading History of Cheltenham: Post-World War II to Present