Rwanda was not a participant in the transatlantic slave trade. Its geography (landlocked, highland) and centralized monarchical structure prevented integration into the coastal export networks that supplied European slavers.
However, pre-colonial Rwandan society did practice forms of domestic servitude and clientage:
Scale was small compared to the industrial transatlantic system. Colonial rule (German, then Belgian) later imposed forced labor (corvée) for infrastructure and cash-crop production—a different, state-driven exploitation.