Strike Under was a punk rock band from Chicago, IL, formed in 1980. The group featured brothers Steve (lead vocals, guitar) and Chris (guitar, backing vocals) Björklund along with Pierre Kezdy (bass) and Bob Furem (drums). The band was short-lived, breaking up in late 1981. According to the documentary film "You Weren't There: A History Of Chicago Punk 1977-1984", tension between the brothers, which could escalate into physical altercations, sometimes while the band was onstage, was the cause of their demise. After the split, Steve Björklund formed Terminal Beach and, later, Breaking Circus. The other 3 members formed Trial By Fire (3). Today, Strike Under is best known for their "Immediate Action" EP, which was the first official release on Wax Trax! Records.