The colonial Belgian forces suppress a rising of Arab slave-traders
in the Upper Congo who are angered by the Europeans' disruption of
their longstanding livelihood.
Citation:
Editors. "Belgians suppress rising of Arab slave-holders in Upper Congo".
The Literary Encyclopedia. First published 30 December 2011
[http://www.litencyc.com/php/stopics.php?rec=true&UID=19084, accessed 18 May 2013.]