Question:
Journey is an American rock band that formed in San Francisco in 1973, composed of former members of Santana and Frumious Bandersnatch. The band has gone through several phases; its strongest commercial success occurred between 1978 and 1987. During that period, the band released a series of hit songs, including "Don't Stop Believin'" (1981), which in 2009 became the top-selling track in iTunes history among songs not released in the 21st century. Its parent studio album, Escape, the band's eighth and most successful, reached No. 1 on the Billboard 200 and yielded another of their most popular singles, "Open Arms".
Journey's album sales did not improve and Columbia Records requested that they change their musical style and add a frontman, with whom keyboardist Gregg Rolie could share lead vocal duties. The band hired Robert Fleischman and transitioned to a more popular style, akin to that of Foreigner and Boston. Journey went on tour with Fleischman in 1977 and together the new incarnation of the band wrote the hit "Wheel in the Sky"; however, management differences resulted in Fleischman leaving within the year.  In late 1977, Journey hired Steve Perry as their new lead singer. Herbie Herbert, the band's manager, also hired Roy Thomas Baker as a producer to add a layered sound approach as Baker had done with his previous band, Queen. With their new lead singer and talented new producer, Journey released their fourth album, Infinity (1978). This album set Journey on their road to stardom with their first RIAA-certified platinum album. This album, with their hit song "Wheel in the Sky" (#57 U.S.), set Journey on a new path with a more mainstream sound to make their highest chart success to date.  In late 1978, manager Herbie Herbert fired drummer Aynsley Dunbar, who joined Bay Area rivals Jefferson Starship shortly thereafter. He was replaced by Berklee-trained jazz drummer Steve Smith. Perry, Schon, Rolie, Smith and Valory recorded Evolution (1979), which gave the band their first Billboard Hot 100 Top 20 single, "Lovin', Touchin', Squeezin'" (#16); and Departure (1980), which reached No. 8 on the album charts.  Journey's newfound success brought the band an almost entirely new fan base. During the 1980 Departure world tour, the band recorded a live album, Captured.  Keyboardist Gregg Rolie then left the band, the second time in his career he left a successful act. Keyboardist Stevie "Keys" Roseman was brought in to record the lone studio track for Captured, "The Party's Over (Hopelessly in Love)," but Rolie recommended pianist Jonathan Cain of The Babys as the permanent replacement. With Cain's replacement of Rolie's Hammond B-3 organ with his own synthesizers, the band was poised for a new decade in which they would achieve their greatest musical success.
Answer this question using a quote from the text above:

Why did they change their musical direction?

Answer:
Journey's album sales did not improve and Columbia Records requested that they change their musical style and add a frontman, with whom keyboardist Gregg Rolie could share lead vocal duties.

Answer the question at the end by quoting:

The British Band was a mixed-nation group of Native Americans commanded by the Sauk leader Black Hawk, which fought against Illinois and Michigan Territory militias during the 1832 Black Hawk War. The band was composed of about 1,500 men, women, and children from the Sauk, Meskwaki, Fox, Kickapoo, Potawatomi, Ho-Chunk, and Ottawa nations; about 500 of that number were warriors. Black Hawk had an alliance with the British that dated from the War of 1812, giving them their colloquial name. The band crossed the Mississippi River from Iowa into Illinois in an attempt to reclaim their homeland and in violation of several treaties.
Sauk warrior Black Hawk, the leader of a band of Sauks near Rock Island at Saukenuk, was always in opposition to ceding Native American lands to white settlers and their governments. Black Hawk supported the invalidity of the Treaty of St. Louis (1804) of both the Sauk and Fox nations negotiated with the then Indiana Territory Governor William Henry Harrison. The treaty ceded territory, including Black Hawk's birthplace Saukenuk, to the United States. The Sauk are a consensus decision making society. Their representatives exceeded the authorization of merely taking under consideration what terms the United States government might put forth, bring them back to reach a consensus and then return with their treaty terms. The lack of the tribe discussing the treaty prior to being made official made it invalid by Black Hawk and other members of the tribe. The representatives never had the tribal authorization to unilaterally cede its lands.  During the War of 1812 between the United Kingdom and the United States, Colonel Robert Dickson, an English fur trader, amassed a sizable force of Native Americans at Green Bay to assist the British in operations around the Great Lakes. Most of the warriors Dickson assembled were from the Potawatomi, Ho-Chunk, Kickapoo and Ottawa tribes. Dickson bestowed the rank of brevet Brigadier General on Black Hawk. He was given command of all Native Americans gathered at Green Bay, including the 200 Sauk warriors under Black Hawk's control. Black Hawk was then presented with a silk flag, a medal, and a written certificate of good behavior and alliance with the British. The certificate would be found 20 years later, after the Battle of Bad Axe, carefully preserved along with a flag similar to the one Dickson gave to Black Hawk.  During the 1812 war, Black Hawk and his warriors fought in several engagements with Henry Procter on the borders of Lake Erie. He returned home to Saukenuk to find his rival Keokuk had become the tribe's war chief. After the war ended, Black Hawk signed a peace treaty in May 1816 that re-affirmed the treaty of 1804, a provision Black Hawk later protested ignorance of.

What is their background?
Black Hawk supported the invalidity of the Treaty of St. Louis (1804) of both the Sauk and Fox nations negotiated with the then Indiana Territory Governor William Henry Harrison.