 It was only in the 1950s that metropolitan troops—i.e., units of the regular Belgian army—were posted in the Belgian Congo (for instance in Kamina).The colonial state—and any authority exercised by whites in the Congo—was often referred to by the Congolese as "bula matari" ("break rocks"), one of the names originally given to Stanley.He had used dynamite to crush rocks when paving his way through the lower-Congo region.