Answer the question at the end by quoting:

Sonata Arctica is a Finnish power metal band from the town of Kemi, Finland. Created as a hard rock band named Tricky Beans, they later changed to Tricky Means and finally to Sonata Arctica, when they shifted to power metal. The current line-up consists of singer, keyboardist and songwriter Tony Kakko, guitarist Elias Viljanen, bass guitarist Pasi Kauppinen, keyboardist and keytarist Henrik Klingenberg, and drummer Tommy Portimo. All the musicians of the band's history except Portimo also acted as backing vocalists.
On May 25, 2007, Unia was released. The album's first single, "Paid In Full", was released on April 27, 2007. On August 6, 2007, the band announced on their website that guitarist Jani Liimatainen had been asked to leave the band due to problems related to his conscription. He was replaced by Elias Viljanen who had already filled in for him in the band's Finnish and Japanese shows during the spring and summer. In October 2007 Sonata Arctica headlined the ProgPower USA VIII. Later the band supported Nightwish across their 2008 tour of United States and Canada and headlined at the shows that Nightwish cancelled due to Anette Olzon's sudden severe sickness. It was announced on September 4, 2008 that the band's first two albums would be re-released with bonus tracks by Spinefarm UK on October 6. The Days of Grays was released on September 16, 2009 in Finland and September 22 in the USA. Henrik stated that the new album would be in the same vein as Unia, but not as complex and darker. Singles from this album include "Flag in the Ground" and "The Last Amazing Grays". On August 28, 2009, the music video of "Flag In The Ground" was released to the web. The limited 2CD European edition of the album featured many of the album tracks with all instruments performed by a symphony orchestra. The band also toured with DragonForce for the third U.S. leg of the Ultra Beatdown. In early 2010 they engaged on an Australian tour with Ensiferum and Melbourne band Vanishing Point. In April 2010, Sonata Arctica embarked on their USA and Canada Headlining tour for The Days of Grays. In October they headlined in Chile in support of the same album.

Is Unia and The Days of Grays a musical band?

On May 25, 2007, Unia was released. The album's first single, "Paid In Full", was released on April 27, 2007.

Some context: Ira Hayes was born in Sacaton, Arizona, a town in the Gila River Indian Community in Pinal County. He was the eldest of six children born to Nancy Hamilton (1901-1972) and Joseph Hayes (1887-1978). The Hayes children were: Ira (1923-1955), Harold (1924-1925), Arlene (1926-1929), Leonard (1927-1952), Vernon (1929-1958), and Kenneth (born 1931). Joseph Hayes was a World War
Hayes enlisted in the Marine Corps Reserve on August 26, 1942. He completed recruit training in Platoon 701 at Marine Corps Base, San Diego (renamed in 1948, Marine Corps Recruit Depot, San Diego) and in October volunteered for Marine paratrooper (Paramarine) training at the Marine Parachute School at Camp Gillespie located east of San Diego. He received the codename of Chief Falling Cloud. On November 30, he graduated from the Parachute Training School and received his silver "jump wings". On December 1, he was promoted to Private First Class. On December 2, 1942, he joined Company B, 3rd Parachute Battalion, Divisional Special Troops, 3rd Marine Division, at Camp Elliott, California. On March 14, 1943, Hayes sailed for New Caledonia with the 3rd Parachute Battalion, which was assigned to Camp Kiser there on March 25 until September 26; the unit was redesignated in April as Company K, 3rd Parachute Battalion, 1st Marine Parachute Regiment of the I Marine Amphibious Corps. The 3rd battalion was shipped to Guadalcanal and remained there until it was sent to Vella Lavella, arriving on October 14 for occupational duty. On December 4, Hayes landed with the 3rd battalion on Bougainville and fought against the Japanese as a platoon automatic rifleman (BAR man) with Company K during the Bougainville Campaign. The 3rd Parachute Battalion was shipped back to Guadalcanal, and he stayed there until sometime in February when the Paramarines were sent back to California. The 1st Parachute Regiment was officially disbanded at Camp Pendleton, California, in February 1944. Hayes was transferred to Company E, 2nd Battalion, 28th Marine Regiment of the newly activated 5th Marine Division at Camp Pendleton. Hayes sailed to Hawaii with his company in September for continued training with the 5th division as it trained for the invasion and capture of Iwo Jima.
Did they win against the Japanese?
A:

IN: Kerli Koiv was born in Elva on February 7, 1987. Her mother, Piret Koiv, was a social worker, and her father, Toivo Koiv, was an auto mechanic. Her parents separated when she was 16. Kerli has stated that when she wrote "Supergirl"--a song about domestic violence written for Utopia--she "put [herself] in [her] mother's body, and said things that [she] wished that [her mother] would've said to her dad when [she] was little".

On 5 November 2015, it was revealed that Kerli composed a song for Eesti Laul 2016, Estonia's national selection for the Eurovision Song Contest 2016. In 2015, Kerli left Los Angeles and returned to Estonia, where she spent nine months with no running water and only her music-making gear to keep her company, where she produced her first independent album. Her single "Feral Hearts" was released digitally worldwide on 19 February 2016. The music video for "Feral Hearts" was released the following week on February 25. "Blossom", the second single from her second studio album, followed with a video on 28 April and the song's release on iTunes the next day. On 26 June, Kerli released the song "Racing Time". She explained that it was one of three songs written for the 2016 film Alice Through the Looking Glass. She had previously contributed to the Almost Alice concept album for the 2010 film Alice in Wonderland. However, the songs were not included on the latest movie's soundtrack. On 27 July, she released the third single from her upcoming sophomore studio album, "Diamond Hard", along with its music video. On April 22, 2016, Kerli was featured as a vocalist and co-wrote a song on British artist Katy B's 'Honey' album (Rinse/Virgin EMI). She co-wrote and sang the hook on "I Wanna Be." On 8 November 2016, it was revealed that Kerli would compete in Eesti Laul 2017, with the song "Spirit Animal". She reached the final and finished second in the competition. She was later announced to be representing Estonia in the OGAE Second Chance Contest 2017 with "Spirit Animal", held in Warsaw. On 24 April 2017, Kerli and Illenium released their collaboration song "Sound of Walking Away", included in Illenium's second studio album Awake (2017).

What is she currently working on?

OUT:
On 24 April 2017, Kerli and Illenium released their collaboration song "Sound of Walking Away", included in Illenium's second studio album Awake (2017).