On March 8, 1970, Whitebear was among the leaders of about 100 "Native Americans and sympathizers" who confronted military police in riot gear at the fort. The MPs ejected them from the fort, but they were able to establish an encampment outside the fort. Organizing as the United Indians of All Tribes Foundation (UIATF), they used tactics ranging from politicking to occupation of land to celebrity appearances. Some of the key politicking came at the federal level: UIATF, like the City, filed to directly acquire land that the federal government was releasing, and the federal government ultimately insisted that the two come up with a joint plan. Negotiations, confrontation and even a Congressional intervention combined in November 1971 to give them a 99-year lease on 20 acres (81,000 m²) in what would become Seattle's Discovery Park, with options for renewal without renegotiation. In addition, the City gave $600,000 to the American Indian Women' Service League for a social services center.