High Quality Content by WIKIPEDIA articles! Colchester Garrison is a major garrison located in Colchester in the county of Essex, Southern England. It has been an important military base since the Roman era. The first permanent military garrison in Colchester was established by Legio XX Valeria Victrix in 43AD following the Roman conquest of Britain. Colchester was an important garrison town during the Napoleonic Wars and throughout the Victorian era. During the First World War several battalions of Kitchener`s Army were trained there. Now, 2nd Battalion and 3rd Battalion of The Parachute Regiment are based there. Today there are new and modern barracks outside the town, which free up building land in the centre and replace the Victorian buildings.