Strength is the second studio album by The Alarm, released in 1985 on IRS Records. The single "Strength" was released before the album, reaching #40 on the UK singles chart. This was followed after the album release by "Spirit of '76", which reached #22 and saw the band on Top of the Pops and in various other TV appearances. "Knife Edge" was the final single from the album to be released, just failing to reach the top 40.

The Alarm are a Welsh rock band that formed in Rhyl, Wales, in 1981. Initially formed as a punk band, the Toilets, in 1977, under lead vocalist Mike Peters, the band soon embraced arena rock and included marked influences from Welsh language and culture. By opening for acts such as U2 and Bob Dylan, they became a popular new wave pop band of the 1980s.