ARM Project D5.1 and the Global Voices Red Sea report are not mutually independent — they share co-author Matti Pohjonen and near-identical case material

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Schroeder et al.'s preprint cites two sources for Ethiopia's AI-generated Red Sea/Assab propaganda: Pohjonen, Kebede & Aalen's ARM Project Deliverable D5.1, and Tesfaye & Pohjonen's Global Voices report (read directly here and here respectively). Reading both in full shows Matti Pohjonen co-authors both. ARM D5.1's own "Case 4: AI-Generated Propaganda and Ethiopia's Red Sea Ambitions" (a boxed case study on p. 36, within §3.4.2's span, uncited to Global Voices) describes the identical September 2025 GERD-to-Assab campaign, quoting the same two AI-generated lines — "From the Nile to Assab, one people! one heart!" and "See you all in Assab!" — that the Global Voices piece also quotes (there, the first as a voiceover line and the second as on-screen text appearing in the video's second half; ARM's box presents both as voiceover), in language close enough to read as the same investigation written up twice rather than two separately-arrived-at accounts.

Per this vault's single-source-concentration standard, independence requires "a different author group and a different venue" (sources.md); a shared author and near-identical case material means these two documents are not independent corroboration of each other, whatever their separate value as direct primary confirmation of claim-schroeder-2026-ethiopia-state-media-army-ai-red-sea-propaganda's synthesis. This resolves the "independently" clause of question-verify-ethiopia-media-army-red-sea-ai-propaganda-primaries: both primaries substantiate Schroeder et al. directly and without mismatch, but Schroeder et al.'s apparent citation of "two sources" for the Red Sea case is better read as one investigation documented in two venues.