Brygada Kryzys (Polish pronunciation: [brɨˈɡada ˈkrɨzɨs], Crisis Brigade) or BK is one of the most important and influential Polish post punk bands. The band was founded in 1981 by two well-known guitarist/vocalists from Warsaw, Robert Brylewski (formerly of the band Kryzys) and Tomasz Lipiński (from Tilt).