Inside the bloody work of tracking war crimes from space

Key Concepts

• Satellite Imagery Analysis: Utilizing high-resolution satellite images to detect and document evidence of war crimes and humanitarian crises.
• Humanitarian Research Lab (Yale): An organization employing advanced technology and analytical methods to monitor and report on human rights abuses and conflicts.
• "If it bleeds, it leads": A media adage suggesting that graphic or sensational news garners more attention.
• "Technical Gun Mount": A pickup truck equipped with a heavy machine gun, often used in conflict zones.
• "Killbox": A term used to describe an area where civilians are deliberately trapped and targeted for killing.
• Red Teaming: An analytical process involving a counter-analysis team to challenge findings and develop alternative hypotheses.
• Commercial Electro-Optical Satellite Imagery: High-resolution satellite imagery (e.g., 30 cm resolution) accessible through commercial providers.
• Supervised Feature Classification: An AI technique using computer vision to identify and count specific objects or anomalies in imagery.
• OSINT (Open Source Intelligence): Gathering and analyzing information from publicly available sources, including anthropological, cultural, and linguistic data.
• Geostatistics: Statistical analysis of data extracted from imagery at scale, often used to identify trends and patterns.
• Integrated Phase Classification (IPC) Level 5: The highest level of famine classification, indicating catastrophic food insecurity.
• NDVI (Normalized Difference Vegetation Index): A satellite-derived index used to assess vegetation health and growth, indicative of crop yields.
• Data Deluge vs. Data Desert: Contrasting situations of overwhelming data availability versus scarcity of information.
• Data Equity: The principle of ensuring fair and equitable access to and utilization of data.
• Power Concedes Nothing Without a Demand: A quote by Frederick Douglass emphasizing the need for active advocacy to achieve change.
• Internally Displaced Persons (IDPs): Individuals forced to flee their homes but who remain within their country's borders.
• Cash Assistance: Providing financial aid to individuals to allow them to purchase essential goods and services.

Summary of Battle Lines: Global Health Security - November 12, 2025

This episode of Battle Lines Global Health Security, hosted by Venanisha Rainey and Arthur Scott Gettys, focuses on the ongoing civil war in Sudan and the innovative use of satellite imagery to document war crimes. The discussion highlights the severity of the humanitarian crisis and the challenges in bringing international attention to the conflict.

The Sudan Conflict: A Humanitarian Catastrophe

• Duration and Nature: The conflict, which began in April 2023, has been ongoing for over two years and is described by the UN as the world's worst humanitarian crisis. It is characterized by massacres, rape, ethnic cleansing, and starvation, affecting millions of people through direct conflict and displacement.
• Belligerent Parties: The war is primarily between Sudan's conventional army and the Rapid Support Forces (RSF), which has roots in the Janjaweed militia responsible for genocide in Darfur in the early 2000s. The RSF is currently dominating Darfur, and the US State Department considers a genocide to be occurring.
• Recent Escalation: The situation intensified with a significant attack on Al Fasher, the capital of North Darfur, in the week prior to the broadcast.
• Media Attention: Despite consistent coverage by outlets like Global Health, the conflict has not received the same level of media traction as the wars in Ukraine or Gaza. This changed significantly with the recent release of satellite images from Yale's Humanitarian Research Lab.

Documenting War Crimes from Space: Yale's Humanitarian Research Lab

Nathaniel Raymond, Executive Director of Yale's Humanitarian Research Lab, details their methodology for using satellite imagery to track war crimes.

• Early Warning and El Geneina Massacre (July 2023): The lab's involvement began in July 2023 while supporting US-led ceasefire negotiations. They witnessed a massacre in El Geneina, Darfur, which served as a preview of current events in Al Fasher.
  • Ground-to-Space Calibration: They received ground photos of dead men and boys from witnesses and cross-corroborated them with satellite imagery. This allowed for calibration, establishing that bodies are measurable from space at a dimension of 1.3 to 2 meters.
  • UN Security Council Briefing: Based on this analysis, the lab warned the UN Security Council in a private session that a siege on Al Fasher in the dry season of 2023-2024 would result in a massacre.
• Al Fasher Siege and "Killbox" Construction: For 18 months, the lab monitored Al Fasher. They observed the construction of a 37 km long "burm" (wall) built with bulldozers, reaching up to 9 feet high. This "killbox" was completed just weeks before the fall of Al Fasher.
• Evidence of Massacre in Al Fasher: Upon the fall of Al Fasher, the lab analyzed satellite imagery for specific telemetry and tactical dispositions of the RSF.
  • Tactical Disposition: They observed RSF vehicles blocking alleys and side streets to trap civilians, a tactic previously documented.
  • Discoloration as Evidence: A critical finding was the presence of subtle red discoloration on the ground, approximately half a meter in diameter, around pickup trucks equipped with 50-caliber machine guns. This discoloration was identified from space.
  • "Technical Gun Mounts" and Body Shapes: These objects were consistent with the 1.3 to 2-meter dimension of bodies. The discoloration indicated bleeding from individuals who fell in a fetal (C-shaped) or kneeling (J-shaped) position.
  • Mathematical Analysis: A mathematical process confirmed the discoloration as "true red" on the spectrum, ruling out other explanations like water points or wadis.
  • Red Teaming and High Confidence: Through a "red team" process, they developed and refuted alternative hypotheses, ultimately reaching "high confidence" (using NATO Admiral T standards) that people were hit at close range by heavy machine guns, bled out quickly, and likely in groups.
  • Corroborating Evidence: The pattern of life of alleged perpetrators in the subsequent two weeks provided further evidence supporting their assessment.
• Satellite Imagery Technology:
  • Commercial Electro-Optical Imagery: They use high-resolution (30 cm) commercial satellite imagery, which is expensive and access-controlled.
  • Analysis Process: The analysis is akin to "Iron Chef," requiring rapid adaptation to new "special ingredients" (evidence). It involves a combination of human analysis and AI/algorithmic processes.
  • AI's Role: While AI can help identify anomalies faster, it creates more work as manual validation is always required.
  • Red Teaming: A crucial part of the process involves a dedicated analyst challenging the findings to ensure robustness.
  • Data Presentation: The presentation of data is critical for clarity and legal admissibility, as analysts act as "crime scene techs from space" who may need to testify in international courts.
• Team Structure and Security: The team's size is kept confidential for security reasons, with members operating remotely and taking extreme precautions to hide their numbers and locations. The unit comprises four cells: imagery analysis, OSINT (anthropological, cultural, linguistic), geostatistics, and production/leadership.
• Dual Role: Humanitarian Aid and Evidence Collection: The lab's mission is twofold: providing decision support for humanitarian aid to protect the living, and collecting evidence of crimes. This requires careful planning and doctrine development to balance immediate aid needs with long-term justice objectives.
• Triage and Resource Allocation: The hardest aspect of their work is making triage decisions on where to focus resources, given the overwhelming number of global crises. Al Fasher is currently a "five-alarm fire," but other crises, like election violence in Tanzania, also require attention.
• Funding Challenges: The lab faces significant funding cuts, impacting their ability to sustain missions like the one in Ukraine and Sudan. They emphasize the need for government and public support to continue this work.
• Genocide Determination: The lab's work supported the US government's genocide determination for Sudan. Raymond argues the crisis is "willfully ignored" due to Western prioritization of diplomatic and economic relationships with the UAE over the lives of Sudanese people.
• Catalytic Moments: Raymond believes the satellite imagery's graphic nature, aligning with the media adage "if it bleeds, it leads," was the catalyst for increased media attention, similar to how an elephant's injury brought attention to landmines.
• Broader Humanitarian Issues: Beyond direct killings, the lab also monitors famine conditions using IPC Level 5 classifications and NDVI analysis from NASA's Landsat satellites to assess crop growth. They also track arson against communities and vegetation, and flooding, which can exacerbate cholera risks.
• Future of Open-Source Intelligence: Technology is advancing rapidly, with daily refresh rates for imagery and increased processing capabilities. However, technology can activate political will but not generate it. The challenge remains "data equity" – ensuring this advanced capability is distributed and utilized effectively.
• Frederick Douglass Quote: Raymond concludes with Frederick Douglass's quote: "Power concedes nothing without a demand," emphasizing the need for public demand to drive action.

On-the-Ground Situation in Al Fasher: Norwegian Refugee Council

Shashwat Saraf, Country Director for the Norwegian Refugee Council (NRC) in Sudan, provides an update from Tawila, a humanitarian epicenter for those displaced from Al Fasher and other parts of Darfur.

• Displacement Figures: While an estimated 250,000 people were in Al Fasher, only about 8,000 have arrived in Tawila in the past week, which is lower than expected. Tawila now hosts approximately 700,000 internally displaced persons (IDPs), transforming the small town into a large open-air camp.
• Reasons for Lower Influx:
  • People Still in Al Fasher: Many remain trapped in the city.
  • Fear of Travel: Survivors are terrified of moving on roads due to the risk of being killed or detained. Testimonies describe crawling through the desert at night to avoid detection.
  • Financial Barriers: Displacement requires payment, and many lack the resources to move to safer locations.
  • Inability to Travel: Prolonged siege and famine conditions in Al Fasher have left many too weak to undertake the arduous journey.
• Testimonies from Arriving IDPs:
  • Separation: Consistent stories of fleeing amidst gunfire and discovering family members missing upon arrival.
  • Detention and Abuse: Men report being detained, tied, beaten, and extorted for money while trying to escape. Many remain in this state.
  • Physical and Mental State: Arriving individuals are often dehydrated, disoriented, and struggling to recall basic information, requiring immediate medical attention.
• Dire Hunger Situation: Food insecurity is rampant in Al Fasher and other besieged towns like Kadugli and Dincha, with IPC Level 5 famine conditions reported. Market conditions, availability, and purchasing power remain critical issues.
• Aid Distribution Challenges:
  • Resource Gap: Organizations like NRC face a significant gap between the required response scale and available resources.
  • Managing Expectations: Teams struggle to explain the resource limitations to desperate populations, leading to frustration and anger.
  • Cash Availability: Distributing cash assistance is complicated by the lack of physical cash in the market due to currency issues between Port Sudan and Darfur, where the old currency is still in use.
  • Safety Risks: The inability to meet demand puts aid workers at risk.
• Heartbreaking Experiences: Saraf recounts a particularly poignant memory of an elderly man entering an early education tent with a young child, asking if anyone knew the child's parents, highlighting the widespread separation and loss.

Conclusion

The episode underscores the critical role of advanced technology like satellite imagery in exposing and documenting atrocities in conflict zones. It highlights the immense humanitarian suffering in Sudan, the challenges faced by aid organizations, and the urgent need for increased international attention and resources. The discussion concludes by emphasizing that while technology can reveal injustices, political will and public demand are essential for meaningful change.