Nigeria, 1985 — palace coup

Sources agree on the core facts: date (Aug 27, 1985), Babangida as coup leader and Army Chief of Staff, Buhari as the deposed leader, and detention of Buhari in Benin City for over three years. There is a minor disagreement on casualties: The Washington Post (fetched directly, contemporaneous Aug 28, 1985 report) describes the coup as 'apparently bloodless' with no casualties reported, while a secondary retrospective source (thehistoryville.com, a history blog not independently corroborated) claims soldiers 'opened fire without provocation' at a Lagos police HQ causing unknown casualties -- this claim was NOT included as a sourced fact here because it could not be corroborated against an accessible primary or major-outlet source. Wikipedia's own citations to the New York Times and Los Angeles Times (Aug 28, 1985) could not be directly accessed this session (paywalled/archived), so the related fact about the AFRC/SMC and subsequent 1986/1990 coup attempts is labeled CHAIN rather than VERIFIED. Britannica's full biography article body text for Babangida could not be fetched in full (only meta-description/header content was retrievable), limiting how much could be verified from it directly. | Verified 6 of 6 VERIFIED facts by fetching each source_url directly; all pages are real, load, and support their attached facts (Washington Post archive article, P.M. News Nigeria, TheCable Nigeria, and Britannica all confirmed). The Wikipedia CHAIN fact was also checked: the article exists, contains the AFRC/SMC and 1986/1990 coup-attempt claims, and cites the named NYT and LAT Aug 28, 1985 pieces as the original entry claimed — CHAIN label is appropriate and justified. One correction made: fact 7 (Britannica) originally included the clause "having assumed power via the coup that removed Buhari," which is not supported by the only retrievable content (the page's meta-description, since the full body text could not be fetched this session either, consistent with the original entry's own caveat). That clause was trimmed; the fact now states only the tenure claim, which is directly and exactly quoted ("served as head of state (1985–93)"). The coup-succession link is already fully and independently established by fact 1 (Washington Post), so no information is lost. Fact 4 (P.M. News) was reworded slightly to more precisely track what the source actually supports (the source ties the "IBB Boys" to the coup generally via "IBB and his boys then struck," and to arrest/detention locations, but does not explicitly say the detention itself, specifically, was "orchestrated" by named loyalists) — meaning is preserved but phrasing tightened. Fact 1's quote field was corrected: the original quote spliced two separate article fragments ("the regime's third-ranking military leader" and "Army Chief of Staff on the Supreme Military Council") into a single continuous-looking quoted phrase that does not appear verbatim in the source; replaced with the actual verbatim fragments joined by ellipses. No changes were needed to the summary — every claim in it is backed by a corresponding fact. Target_leader confirmed accurate.