evidence: The UPA launched in early 1987 and became viable later that year, when it had several hundred fighters on at least two bases on Ugandan soil, operating without significant challenge from the government for approximately six months. Later, at its height in 1989 and 1990, the UPA recruited well over a thousand men, organized into eight brigades covering different portions of the Teso region, an area of approximately 4,300 square kilometers. Fighting between UPA and the government forces became intense, presenting a fierce challenge to the Ugandan government and leading to over a thousand battle-related deaths while displacing about 13,000 from their homes. The rebellion eventually unraveled and ended with a peace agreement in 1992. [...] In contrast to the serious problem that UPA posed to the Ugandan government, FOBA – despite aiming to overthrow the government and successfully killing several local government officials – never became a considerable threat. During its height, its members killed numerous local government officials and military and police officers in Bukedi. But, despite several attempts, FOBA never sustained a base on Ugandan territory for more than a few weeks. Their sole base was located in Kenya, about 5 kilometers over the border from Uganda. While accounts vary widely, at its height, FOBA probably reached 300–500 fighters.