THE BRITISH GARRISON IN LONDON In one of several concentrations of British troops in Upper Canada various infantry and artillery units were stationed on a military reserve here during the mid-19th century. The garrison, which contributed significantly to the economic growth of London was first established in 1839 to guard against border raids following the Rebellion of 1837. Although its troops were withdrawn in 1853 to serve in the Crimean War and military duties were assumed by pensioners, it was re-occupied by British regulars in 1862 when the American Civil War posed a threat to the province. To help repulse an expected invasion of Fenians, militant Irish sympathizers, the garrison remained active until 1868. Six years later this part of the old military reserve was set aside as Victoria Park.