Question: How many are estimated dead from this civil war?
About the article "Nigeria", section "Civil war (1967-1970)".

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As usual in wars of this era, disease caused more deaths than combat.
There are no accurate figures for these periods, and it is not possible to give a precise overall figure for those killed in battle, as opposed to those who died from disease, or even from a natural decline in population.
Figures for casualties during this period are unreliable, but some attempt has been made to provide rough estimates.
In England, a conservative estimate is that roughly 100,000 people died from war-related disease during the three civil wars.
Historical records count 84,830 dead from the wars themselves.
Counting in accidents and the two Bishops' wars, an estimate of 190,000 dead is achieved, out of a total population of about five million.
Figures for Scotland are more unreliable and should be treated with greater caution.
Casualties include the deaths of prisoners-of-war in conditions that accelerated their deaths, with estimates of 10,000 prisoners not surviving or not returning home (8,000 captured during and immediately after the Battle of Worcester were deported to New England, Bermuda and the West Indies to work for landowners as indentured labourers).
There are no figures to calculate how many died from war-related diseases, but if the same ratio of disease to battle deaths from English figures is applied to the Scottish figures, a not unreasonable estimate of 60,000 people is achieved, from a population of about one million.
Figures for Ireland are described as "miracles of conjecture".
Certainly the devastation inflicted on Ireland was massive, with the best estimate provided by Sir William Petty, the father of English demography.
Petty estimates that 112,000 Protestants and 504,000 Catholics were killed through plague, war and famine, giving an estimated total of 616,000 dead, from a pre-war population of about one and a half million.
Although Petty's figures are the best available, they are still acknowledged as being tentative; they do not include the estimate of 40,000 driven into exile, some of whom served as soldiers in European continental armies, while others were sold as indentured servants to New England and the West Indies.
Many of those sold to landowners in New England eventually prospered, but many of those sold to landowners in the West Indies were worked to death.
These estimates indicate that England suffered a 3.7% loss of population, Scotland a loss of 6%, while Ireland suffered a loss of 41% of its population.
Putting these numbers into the context of other catastrophes helps to understand the devastation to Ireland in particular.
The Great Hunger of 1845–1852 resulted in a loss of 16% of the population, while during the Second World War the population of the Soviet Union fell by 16%. 
Criticism of companies such as Halliburton in the context of the Iraq War draw heavily on the stereotype of the businessman profiteer.
Slogans relating to 'blood for oil' have a similar implication.
Steve Clemons, a senior fellow at the New America Foundation think tank, has accused former CIA Director James Woolsey of both profiting from and promoting the Iraq War.
The Center for Public Integrity has reported that US Senator Dianne Feinstein and her husband, Richard Blum, are making millions of dollars from Iraq and Afghanistan contracts through his company, Tutor Perini Corporation.
Feinstein voted for the resolution giving President George W. Bush the authority to invade Iraq.
Indicted defense contractor Brent R. Wilkes was reported to be ecstatic when hearing that the United States was going to go to war with Iraq.
“He and some of his top executives were really gung-ho about the war,” said a former employee.
“Brent said this would create new opportunities for the company.
He was really excited about doing business in the Middle East.”The "War Profiteering Prevention Act of 2007" intended to create criminal penalties for war profiteers and others who exploit taxpayer-funded efforts in Iraq and elsewhere around the world.
War profiteering cases are often brought under the Civil False Claims Act, which was enacted in 1863 to combat war profiteering during the Civil War.
Major General Smedley Butler, USMC, criticized war profiteering of U.S companies during World War I in "War Is a Racket".
He wrote about how some companies and corporations increase their earnings and profits by up to 1700% and how many companies willingly sold equipment and supplies to the U.S that had no relevant use in the war effort.
In the book, Butler stated that "It has been estimated by statisticians and economists and researchers that the war cost your Uncle Sam $52,000,000,000.
Of this sum, $39,000,000,000 was expended in the actual war period.
This expenditure Yielded $16,000,000,000 in profits."
In historical reenactment, authenticity (sometimes referred to as the A-factor or simply A) is a measure of how close an item, prop, action, weapon, or custom is to what would actually have been used or done in the time period being depicted.
For example, in most northern European medieval reenactment cotton is an "inauthentic" material—as opposed to wool or linen—though it would be "authentic" in more modern periods and events, such as American Civil War reenactment or World War II reenactment.
Likewise, pop culture references and talking about modern events or objects (e.g., wrist watches, mobile phones, or President Barack Obama) is inauthentic.
Generally, the ratio of events and groups enforcing strict authenticity to those permitting (limited) inauthenticity among the participating reenactors is estimated to be half-half, i.e., there are approximately as many groups enforcing historical accuracy as there are permitting a more liberal use of the term "authentic".
This does, however, vary from country to country. 
American Civil War reenactments have drawn a fairly sizable following of enthusiastic participants, young and old, willing to brave the elements and expend money and resources in their efforts to duplicate the events down to the smallest recorded detail.
Participants may even attend classes put on by event sponsors where they learn how to dress, cook, eat, and even "die" just as real Civil War soldiers would have.
Most reenactments have anywhere from 100 to 1,000 participants, portraying either Union or Confederate infantry, artillery, or cavalry forces.
Some people, though uncommon, may portray Engineers or Marines.
The 135th anniversary Gettysburg reenactment (1998) is generally believed to be the most-attended reenactment, with attendance estimates ranging from 15,000 to over 20,000 reenactors.
Reasons given for participating in such activities vary.
Some participants are interested in getting a historical perspective on the turbulent times that gripped the nation, particularly if they can trace their ancestry back to those who fought in the war.
In some cases, if there are not enough reenactors present on one side, reenactors from the other side are asked to change sides, or "galvanize", for the day/event.
Although many periods are reenacted around the world, Civil War reenactment is, by far, the most popular activity in the US.
In 2000, the number of Civil War reenactors was estimated at 50,000, though the number of participants declined sharply through the ensuing decade, to around 30,000 in 2011.
Possible reasons for the decline include the cost of participating and the variety of other entertainment options.
Although women and children commonly participate in reenactments as civilians (portraying, for example, members of a soldiers' aid society), some women also take part in military portrayals.
This is controversial within the reenactment community; while there were a small handful of women who may have fought in the conflict, almost all of them did so disguised as men.
Attitudes on this topic seem to vary widely. 
According to the General Staff of the Russian Armed Forces, 3,826 troops were killed, 17,892 were wounded, and 1,906 are missing in action.
According to the "NVO", the authoritative Russian independent military weekly, at least 5,362 Russian soldiers died during the war, 52,000 were wounded or became diseased and some 3,000 more remained missing by 2005.
The estimate of the Committee of Soldiers' Mothers of Russia, however, put the number of the Russian military dead at 14,000, based on information from wounded troops and soldiers' relatives (counting only regular troops, i.e.
not the "kontraktniki" and special service forces).
List of names of the dead soldiers, drawn up by the Human Rights Center "Memorial" contains 4393 names.
In 2009, the official Russian number of troops still missing from the two wars in Chechnya and presumed dead was some 700, while about 400 remains of the missing servicemen were said to be recovered up to this point.
Chechen casualties are estimated at up to 100,000 dead or more, of which most were civilians.
Various estimates put the number of Chechens dead or missing between 50,000 and 100,000.
Russian Interior Minister Anatoly Kulikov claimed that fewer than 20,000 civilians were killed.
Sergey Kovalyov's team could offer their conservative, documented estimate of more than 50,000 civilian deaths.
Aleksander Lebed asserted that 80,000 to 100,000 had been killed and 240,000 had been injured.
The number given by the ChRI authorities was about 100,000 killed.
According to Russian newspaper "Gazeta", approximately 35,000 ethnic Russian civilians were killed by Russian forces operating in Chechnya, most of them during the bombardment of Grozny.
The ChRI separatists estimated their combat deaths were about 3,000 (including some 800 in the first three months of the war and said to be mostly killed by mortar fire), although this number is almost certainly too low.
Tony Wood, a journalist and author who has written extensively about Chechnya, estimated about 4,000 Chechen combatant losses.
It is impossible to know exactly how many Chechen separatists were killed, however, because many fought independently and were not under the control of Dudayev (as such, their deaths were not counted among official Chechen losses).
The Russian estimate is much higher; Russia's Federal Forces Command estimated that 15,000 Chechen fighters had been killed by the end of the war.