22-23 January 1991
RPF launches an attack on Ruhengeri and frees prisoners. During Operation Noroit, French military forces intervene directly in combat.
27 January 1991
In response to the RPF offensive in Ruhengeri, a wave of massacres of the Bagogwe takes place.
10 June 1991
The Rwandan Constitution is amended and a multiparty system is launched.