The military incapacitating agent BZ (3-quinuclidinyl benzilate) is an anticholinergic compound that acts at both, the peripheral and central nervous system. Effects of the agent were discovered during the Cold War and BZ became one of the most potent anticholinergic psychomimetics, characterized by low effective doses causing long-term incapacitation. History, characteristics and potential use of BZ in behavioral research are discussed throughout this review.