 Complete the following phrase:  In the 1980s, a group of 500 Banyarwanda refugees in Uganda, led by Fred Rwigyema, fought with the rebel National Resistance Army NRA in the Ugandan Bush War, which saw Yoweri Museveni overthrow Milton Obote. These soldiers remained in the Ugandan army following Musevenis inauguration as Ugandan president, but simultaneously began planning an invasion of Rwanda through a covert network within the armys ranks. In 1990, the soldiers broke ranks and launched an invasion of northern Rwanda as the Rwandan Patriotic Front RPF, initiating the 