Question:
Ludendorff was born on 9 April 1865 in Kruszewnia near Posen, Province of Posen, Kingdom of Prussia (now Poznan County, Poland), the third of six children of August Wilhelm Ludendorff (1833-1905). His father was descended from Pomeranian merchants who had achieved the prestigious status of Junker. Erich's mother, Klara Jeanette Henriette von Tempelhoff (1840-1914), was the daughter of the noble but impoverished Friedrich August Napoleon von Tempelhoff (1804-1868) and his wife Jeannette Wilhelmine von Dziembowska (1816-1854), who came from a Germanized Polish landed family on the side of her father Stephan von Dziembowski (1779-1859). Through Dziembowski's wife Johanna Wilhelmine von Unruh (1793-1862), Erich was a remote descendant of the Counts of Donhoff, the Dukes of Duchy of Liegnitz and Duchy of Brieg and the Marquesses and Electors of Brandenburg.
In 1885, Ludendorff was commissioned as a subaltern into the 57th Infantry Regiment, then at Wesel. Over the next eight years, he was promoted to lieutenant and saw further service in the 2nd Marine Battalion, based at Kiel and Wilhelmshaven, and in the 8th Grenadier Guards at Frankfurt on the Oder. His service reports reveal the highest praise, with frequent commendations. In 1893, he entered the War Academy, where the commandant, General Meckel, recommended him to the General Staff, to which he was appointed in 1894. He rose rapidly and was a senior staff officer at the headquarters of V Corps from 1902 to 1904.  Next he joined the Great General Staff in Berlin, which was commanded by Alfred von Schlieffen, Ludendorff directed the Second or Mobilization Section from 1904-13. Soon he was joined by Max Bauer, a brilliant artillery officer, who became a close friend. By 1911, Ludendorff was a full colonel. His section was responsible for writing the mass of detailed orders needed to bring the mobilized troops into position to implement the Schlieffen Plan. For this they covertly surveyed frontier fortifications in Russia, France and Belgium. For instance, in 1911 Ludendorff visited the key Belgian fortress city of Liege.  Deputies of the Social Democratic Party of Germany, which became the largest party in the Reichstag after the German federal elections of 1912, seldom gave priority to army expenditures, whether to build up its reserves or to fund advanced weaponry such as Krupp's siege cannons. Instead, they preferred to concentrate military spending on the Imperial German Navy. Ludendorff's calculations showed that to properly implement the Schlieffen Plan the Army lacked six corps.  Members of the General Staff were instructed to keep out of politics and the public eye, but Ludendorff shrugged off such restrictions. With a retired general, August Keim, and the head of the Pan-German League, Heinrich Class, he vigorously lobbied the Reichstag for the additional men. In 1913 funding was approved for four additional corps but Ludendorff was transferred to regimental duties as commander of the 39th (Lower Rhine) Fusiliers, stationed at Dusseldorf. "I attributed the change partly for my having pressed for those three additional army corps."  Barbara Tuchman characterizes Ludendorff in her book The Guns of August as Schlieffen's devoted disciple who was a glutton for work and a man of granite character but who was deliberately friendless and forbidding and therefore remained little known or liked. It is true that as his wife testified, "Anyone who knows Ludendorff knows that he has not a spark of humor...". He was voluble nonetheless, although he shunned small talk. John Lee, states that while Ludendorff was with his Fusiliers, "he became the perfect regimental commander ... the younger officers came to adore him." His adjutant, Wilhelm Breucker, became a devoted lifelong friend.
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what is the most interesting aspect of this section?

Answer:
Ludendorff's calculations showed that to properly implement the Schlieffen Plan the Army lacked six corps.


Question:
The Bee Gees were a pop music group formed in 1958. Their lineup consisted of brothers Barry, Robin, and Maurice Gibb. The trio were successful for most of their decades of recording music, but they had two distinct periods of exceptional success: as a popular music act in the late 1960s and early 1970s, and as prominent performers of the disco music era in the mid-to-late 1970s. The group sang recognisable three-part tight harmonies; Robin's clear vibrato lead vocals were a hallmark of their earlier hits, while Barry's R&B falsetto became their signature sound during the mid-to-late 1970s and 1980s.
In an interview with Easy Mix radio host Tim Roxborough on 1 September 2009, Barry's 63rd birthday, Barry commented on future tours saying that "they will be back"; but in an agreement with Warner/Rhino they would not make an announcement at that time. On 7 September 2009, Robin disclosed to Jonathan Agnew that he had been in touch with Barry and that they had agreed that the Bee Gees would re-form and "perform again".  Barry and Robin performed on the BBC's Strictly Come Dancing on 31 October 2009 and appeared on ABC-TV's Dancing with the Stars on 17 November 2009. On 15 March 2010, Barry and Robin inducted the Swedish group ABBA into the Rock and Roll Hall of Fame. On 26 May 2010, the two made a surprise appearance on the ninth-season finale of American Idol.  On 20 November 2011 it was announced that Robin Gibb, at 61 years old, had been diagnosed with liver cancer, a condition he had become aware of several months earlier. He had become noticeably thinner in previous months and had to cancel several appearances due to issues with severe abdominal pain.  On 13 February 2012, Robin joined British military trio the Soldiers for the Coming Home charity concert at the London Palladium, in support of injured servicemen. It was his first public appearance for almost five months and his final.  On 14 April 2012, it was reported that Robin had contracted pneumonia in a Chelsea hospital and was in a coma. Although he came out of his coma on 20 April 2012, his condition deteriorated rapidly, and he died on 20 May 2012 of liver and kidney failure. With Robin's death, Barry became the last surviving Gibb brother, and the Bee Gees dissolved as a musical group.
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When did they return to performing?

Answer:
Barry and Robin performed on the BBC's Strictly Come Dancing on 31 October 2009