The militants planned for more than two years to bomb government buildings in the state, in addition to carrying out training with firearms (several of them obtained illegally).
[1] In 1995 the Bureau of Alcohol, Tobacco, Firearms and Explosives start to follow some intelligence reports from a militia with extremist views in Arizona.The ATF started infiltrating an agent to the group and was seeing in detail various plans to attack and kill the ATF and other law enforcement officials, highlighting attacking their facilities with explosives in Phoenix.
[2] The group are said to have held training exercises in the Arizona desert as well as the detonation of small charges Ammonium nitrate bombs.
[3] June 2, 1996, federal authorities arrested twelve militants (ten men and two women), most of the detainees had felony charges.
[9][2] Day later the court conditionally release six members from the jail pending your trial for membership by a terrorist organization and the seizure of unregistered weapons.