The International Submarine Band (ISB) was formed by country rock pioneer Gram Parsons while a theology student at Harvard University and John Nuese, a guitar player for local rock group, The Trolls. Nuese is largely credited with having persuaded Parsons to pursue the country-rock sound he would later be remembered for when the two first started the ISB. Parsons' work with the band predates his better known ventures with The Byrds, the Flying Burrito Brothers, and the Fallen Angels with Emmylou Harris.