The Bugesera invasion (French: Invasion de Bugesera), also known as the Bloody Christmas (French: Noël Rouge), was a military attack which was conducted against Rwanda by Inyenzi rebels who aimed to overthrow the government in December 1963. The Inyenzi were a collection of ethnically Tutsi exiles who were affiliated with the Rwandan political party Union Nationale Rwandaise (UNAR), which had supported Rwanda's deposed Tutsi monarchy. The Inyenzi opposed Rwanda's transformation upon independence from Belgium into a state run by the ethnic Hutu majority through the Parti du Mouvement de l'Emancipation Hutu (PARMEHUTU), an anti-Tutsi political party led by President Grégoire Kayibanda. In late 1963 Inyenzi leaders decided to launch an invasion of Rwanda from their bases in neighbouring count