On 1 July 1962, Belgium, with UN oversight, granted full independence to the two countries. Rwanda was created as a republic governed by the majority MDR-Parmehutu, which had gained full control of national politics. In 1963, a Tutsi guerrilla invasion into Rwanda from Burundi unleashed another anti-Tutsi backlash by the Hutu government; their forces killed an estimated 14,000 people. The economic union between Rwanda and Burundi was dissolved and tensions between the two countries worsened. Rwanda became a Hutu-dominated one-party state. In excess of 70,000 people had been killed.