<Tr> <Th> Built </Th> <Td> 1971 </Td> </Tr> <Tr> <Th> In use </Th> <Td> 1971--present </Td> </Tr> <P> The British Army Training Unit Suffield (BATUS) is a British Army unit located at the vast training area of Canadian Forces Base Suffield near Suffield, Alberta, Canada . BATUS is the British Army's largest armoured training facility, and it can accommodate live - firing and tactical effect simulation (TES) exercises up to battle group level . CFB Suffield is 19% the size of Northern Ireland and offers the British Army the ability to conduct large exercises that UK military bases cannot accommodate . </P> <P> A British chemical weapons testing facility was located in French - controlled Algeria . However, upon the conquest of France by Germany, the facility was lost . The British could find no suitable location in the UK, and an agreement was signed between Canada and the UK to allow the Suffield area to become available to British scientists for testing . Consequently, British and Canadian forces employed the area for a variety of experiments . Upon the end of World War II, the British departed the Suffield area and it was formally taken over by the Canadian Defence Research Board . </P>

Where do the british army train in canada