Question: What is the country of citizenship of the person who is part of the band that performed Guardians of the Flame?

full_context: Document 1: David Briggs (American musician): David Paul Briggs (born March 16, 1943 in Killen, Alabama, United States) is an American keyboardist, record producer, arranger, composer and studio owner. Briggs is one of an elite core of Nashville studio musicians known as "the Nashville Cats" and has been featured in a major exhibition by the Country Music Hall of Fame in 2015. He played his first recording session at the age of 14 and has gone on to add keyboards to a plethora of pop, rock, and country artists, as well as recording hundreds of corporate commercials.
Document 2: Sanctuary (Iron Maiden song): "Sanctuary" is the second single released by the British heavy metal band Iron Maiden. The single was released on 23 May 1980. Although originally issued as a non-album single, the song was added to the later US release of their debut studio record, "Iron Maiden" (1980). When the album was re-released in 1998, the song was added in all territories. In 1990, the 12" version was reissued on CD and 12" vinyl in "The First Ten Years" box set, in which it was combined with their first single, "Running Free".
Document 3: David Wise (composer): David Wise is an English video game music composer and musician. He was a composer at Rare from 1985 to 2009, and was the company's sole musician up until 1994. He has gained a cult following for his work on various games, particularly Nintendo's Donkey Kong Country series. Wise is known for his atmospheric style of music, mixing natural environmental sounds with prominent melodic and percussive accompaniment.
Document 4: Lamborghini Angels: "Lamborghini Angels" is a song performed by rapper Lupe Fiasco. It was released on August 14, 2012 as the third single from his forthcoming album "". The song contains lyrics that may offend people because of its religious content.
Document 5: Irene Jansen: Irene Jansen is a Dutch singer. She sang on the Ayreon album "The Human Equation", portraying the character Passion. She was also the live backing vocalist of Star One during their tour in 2003, and played the character Morgana in two Gary Hughes concept albums. She was the lead singer of a power metal band called Karma. She made her first recordings in more than a decade for the Alarion album "Waves of Destruction", released in 2016.
Document 6: Wish I Had an Angel: ``Wish I Had An Angel ''is the eleventh single for Finnish symphonic metal band Nightwish, the second from their fifth album Once. The song features vocals by then - vocalist Tarja Turunen and bassist Marco Hietala. The song was still performed live after Turunen's departure with Anette Olzon, before her departure, and current vocalist Floor Jansen afterwards. Featured on the soundtrack of the film Alone In The Dark, it became the group's most popular single in Europe and in the United States, next to Nemo. It made it onto two U.S. film soundtracks. It reached # 60 in the UK Singles Chart, the highest of any of the band's singles in the UK.
Document 7: Angels of the Apocalypse: As with the previous effort, several heavy metal singers were invited to play the characters of the story of the album, with female vocalist Elize Ryd of Amaranthe reprising her role and Floor Jansen (Nightwish, ReVamp) playing the main character. The rest of the cast includes Fabio Lione (Rhapsody of Fire, Angra), David DeFeis (Virgin Steele), Simone Simons (Epica), Caterina Nix (solo Chilean singer who is having her debut album produced by Timo Tolkki) and Zachary Stevens (ex-Savatage, Circle II Circle).
Document 8: Steve Hunter: Stephen John Hunter (born June 14, 1948) is an American guitarist, primarily a session player. He has worked with Lou Reed and Alice Cooper and been often called ``The Deacon ''. Hunter first played with Mitch Ryder's Detroit, beginning a long association with record producer Bob Ezrin who has said Steve Hunter has contributed so much to rock music in general that he truly deserves the designation of`` Guitar Hero''. Steve Hunter has played some of the greatest riffs in rock history - that first slamming solo that rings in Aerosmith's ``Train Kept A Rollin ''', the acoustic intro on Peter Gabriel's`` Solsbury Hill'' and he wrote the legendary intro interlude that made Lou Reed's live version of ``Sweet Jane ''Reed's first gold record (the Rock' N 'Roll Animal live set).
Document 9: David DeFeis: David DeFeis (born January 4, 1961) is an American singer, keyboard player, songwriter and producer. He is the main composer and leader of the heavy metal band Virgin Steele.
Document 10: Don Randi: Don Randi (born 25 February 1937) is an American keyboard player, bandleader and songwriter. He has performed on innumerable recordings, including many as a session musician and member of the Wrecking Crew, as well as releasing his own jazz records.
Document 11: This Will Be the Death of Us: The album was produced by Mike Green (Paramore, The Matches) and is their debut on Epitaph Records after their manager reportedly paid their previous label, Eulogy Recordings, to buy out their contract. Recording was completed in late March. The album features various guest vocals including Vinnie Caruana of I Am the Avalanche and The Movielife on opener and title track, "This Will Be the Death of Us". Hayley Williams of Paramore also features on "The Few That Remain", whilst ex-vocalist of Turmoil Jon Gula is featured on "Gaia Bleeds (Make Way For Man)". The album is closed with the 90s skate punk influenced "Our Ethos: A Legacy to Pass On", featuring vocals from New Found Glory’s Chad Gilbert. Jordan Pundik, also of New Found Glory provides vocals on the Japanese bonus track "The Lost Boys".
Document 12: The Black Light Bacchanalia: The Black Light Bacchanalia is the twelfth album by New York heavy/power metal group Virgin Steele, released via SPV/Steamhammer on October 22, 2010 in Germany, Austria & Switzerland, and the rest of Europe on October 25, 2010 & on November 9, 2010, in the USA.
Document 13: Noble Savage (album): Noble Savage is the third studio album of the American heavy metal band Virgin Steele, released in 1985 by Cobra Records. The album was reissued in 1997 on CD by Noise Records with six bonus tracks. The remastered edition of 2008 by Dockyard 1 added two other extra tracks. In May 2011, the album was reissued once more by Steamhammer Records, a subsidiary of SPV with the same track list as the 1997 release, but with an added bonus CD containing 13 additional tracks.
Document 14: Ride the Lightning: Ride the Lightning is the second studio album by American heavy metal band Metallica, released on July 27, 1984, by the independent record label Megaforce Records. The album was recorded in three weeks with producer Flemming Rasmussen at the Sweet Silence Studios in Copenhagen, Denmark. The artwork, based on a concept by the band, depicts an electric chair being struck by lightning flowing from the band logo. The title was taken from a passage in Stephen King's novel "The Stand". Although rooted in the thrash metal genre, the album showcased the band's musical growth and lyrical sophistication. This was partly because bassist Cliff Burton introduced the basics of music theory to the rest of the band and had more input in the songwriting. Instead of relying heavily on fast tempos as on its debut "Kill 'Em All", Metallica broadened its approach by employing acoustic guitars, extended instrumentals, and more complex harmonies. The overall recording costs were paid by Metallica's European label Music for Nations because Megaforce was unable to cover it. It was the last album to feature songwriting contributions from former lead guitarist Dave Mustaine, and the first to feature contributions from his replacement, Kirk Hammett.
Document 15: Guardians of the Flame (album): Guardians of the Flame is the second album from New York power metal band Virgin Steele, released in 1983 by Music for Nations. Sanctuary reissued the album in 2002 with songs previously released in the EP "Wait for the Night", a live recording, and an interview with the band.
ground_truth: America
sub_queries: Guardians of the Flame >> performer Answer: Virgin Steele
Virgin Steele >> has part Answer: David DeFeis
David DeFeis >> country of citizenship Answer: America