Custom Robo GX (カスタムロボGX , Kusutamu Robo JīEkkusu ) is a Sci-Fi action role playing game developed by NOISE and published by Nintendo for the Game Boy Advance on July 26, 2002 in Japan.
 However, Nintendo had considered releasing the game in North America, but never did for reasons unknown.
 It stayed on "Nintendo Power"' s future release list for a few years, until the release of the next title of the series, "" for the Nintendo GameCube (known as "Custom Robo" in North America).
 NOISE was also planning to develop the sequel, "Custom Robo GX 2" but later dropped from the lineup in favor of "Custom Robo Arena" for the Nintendo DS.
 Nintendo previously planned to release it in late 2005 in Japan.
 "Custom Robo GX" is the third title of the "Custom Robo" series as well as the last "Custom Robo" title never released outside Japan.
Armchair General was a bimonthly American military history magazine published by Weider History Group.
 It was in circulation between February 2004 and May 2015.
 The headquarters of the magazine was in Thousands Oaks, California.
Nintendo World is a Brazilian video game magazine, which covers games for the Nintendo Wii, Wii U, 3DS and DS.
 It was created in 1998 by the Conrad Editora.
 Initially it covered games for the Nintendo 64 and Game Boy Color consoles, which were very popular in the country at the time.
 Over 100 issues have been published as of 2006, and the magazine has been awarded by Nintendo of America for its high readership and for being one of the best quality Nintendo magazines in Latin America.
 Its current editor is Editora Tambor.
 From issue 60 onwards, the magazine started featuring content from "Nintendo Power".
Nintendo Power was a news and strategy magazine which was initially published in-house monthly by Nintendo of America, and later independently.
 In December 2007, Nintendo contracted publishing to Future US, the American subsidiary of British publisher Future.
 It was one of the longest running video game magazines in the United States and Canada, and was Nintendo's official magazine in North America.
Mark H. Walker is a writer and board wargame designer.
 He has written articles about information technology and computer and video games for publications including "AutoWeek", "PC Gamer", "Computer Gaming World", "Armchair General", and "Playboy" and websites such as "GameSpy" and "Science Fiction Weekly".
Nintendo Force, or NF Magazine, is a bi-monthly magazine that centers upon various Nintendo hardware products such as the Wii, Wii U, Nintendo DS, Nintendo Switch, Nintendo 3DS.
 On December 21, 2012, IGN editor and magazine founder Lucas M. Thomas announced his intention to release the magazine, stating that he had begun to plan for the magazine upon hearing of "Nintendo Power"'s cancellation.
 The magazine includes staff members from Destructoid, GoNintendo, IGN, Nintendojo, 1UP.
com.
 The writer and founder of the online comic "Brawl in the Family", and Nintendo World Report, among others.
Elbinsel Museum is a museum in Kirchdorf Süd, Wilhelmsburg, Hamburg, Germany.
 The museum was founded in 1907 by a local history group.
 The first collections were exhibited in a room of the local city hall that was built in 1903.
 At that time many industrial enterprises were established the area near the port of Hamburg.
 Farmhouses and cottages had to give way to provide housing for factory employees.
 This left large amounts of furniture and antiques behind.
 It enabled the local history group to hold valuable old pieces and preserve them for posterity, but the one room storage area at the local City Hall where the items were stored was soon filled to the brim.
 Finding numerous other places to hold the ever-growing collection proved to be unsuccessful, in 1942 it moved into its final destination which were on the premises of the old administrative building in Kirchdorf, where it has enjoyed great popularity for the last 50 years.
Weider History Group is a magazine publishing company headquartered in Leesburg, Virginia.
 It was founded in 2006 by Eric Weider, the son of fitness entrepreneur Ben Weider (and nephew of Joe Weider) and current President of Schiff Nutrition International.
 The Weider History Group publishes 11 titles reaching 600,000 readers.
 It operates HistoryNet.com, a website that contains daily features, photo galleries, and articles published in various magazines.
"Armchair general" is a derogatory term for a person who regards himself or herself as an expert on military matters, despite possessing little to no actual experience in the military.
The Nintendo Power Line was a hotline that provided fellow readers of Nintendo Power hints to their favorite games on Nintendo consoles, such as the Nintendo Entertainment System.
 It ran from the publishing of the first issue publication of Nintendo Power to June 2010, due to the Internet becoming more widespread.
 It was revived from November 11 to November 13, 2016 in celebration of the release of the NES Classic Edition.
 The messages, however, were automated rather than being live.

Question: Which magazine, Nintendo Power or Armchair General, was produced by Weider History Group?
Answer: Armchair General