I cover a broad range of topics, including international wars, policing in the United States and North Korean smuggling networks. My stories scrutinize official accounts of events that are often misleading or false.
I have almost two decades of experience using innovative tools and methodologies for reporting and research, focusing on violations of human rights and the laws of war. My specialty is geospatial analysis and using satellite images to tell stories. I have shared in two Pulitzer Prizes for coverage of the civilian toll of U.S. air and drone strikes and Russian atrocities in Ukraine.
I have published several academic papers and book chapters on digital sleuthing. In 2009, I testified as an expert witness at a congressional hearing on the armed conflict in Sri Lanka.
I want all of my work to be accurate and fair and adhere to the standards of integrity outlined in our Ethical Journalism Handbook.
X: @ckoettl
Anonymous tips: nytimes.com/tips
The United Arab Emirates is expanding a covert campaign to back a winner in Sudan’s civil war. Waving the banner of the Red Crescent, it is also smuggling weapons and deploying drones.
By Declan Walsh and Christoph Koettl
By Christoph Koettl and Haley Willis
The capture of Ukrainsk underscored Russia’s steady advances in the Donetsk region. Ukraine is trying to counter with strikes on Russian military infrastructure.
By Constant Méheut
The fall of Sudzha, about six miles from the border, would be Ukraine’s first capture of a Russian town since its troops crossed into Russian territory 10 days ago.
By Constant Méheut
Planned in secrecy, the incursion was a bold move to upend the war’s dynamics and put Moscow on the defensive — a gambit that could also leave Ukraine exposed.
By Kim Barker, Anton Troianovski, Andrew E. Kramer, Constant Méheut, Alina Lobzina, Eric Schmitt and Sanjana Varghese
After several days of fighting in southwestern Russia, both sides are claiming successes. The battles are still being waged.
By Kim Barker
China has moved thousands of people to new settlements on its frontiers. It calls them “border guardians.”
By Muyi Xiao and Agnes Chang
Darfur, the region of Sudan once synonymous with genocide, may be on the brink of a new chapter of horror.
By Lauren Leatherby, Declan Walsh, Sanjana Varghese and Christoph Koettl
Much of what has been seen is consistent with the aftermath of Israeli bombardment and ground operations elsewhere in Gaza since the war began last October.
By Lauren Leatherby
A New York Times analysis shows security upgrades unique to Russian nuclear storage facilities at a Cold War-era munitions depot.
By Christoph Koettl
