Think of this as your investigation log. Answer each question to explain what you discovered and how you got there.
1. Write a brief overall summary of your findings.
No U.S.-based reporting agencies made any claims about 500+ infantrymen being killed/wounded in their staging areas in the Middle East, and the only sources that made that claim were based in Iran.
2. What primary sources did you find (e.g., transcripts, videos of politician speeches, tweets from public figures, scientific studies)? For each source, write at least one or two sentences explaining what you learned. Include all links.
What I found was a official statement made by the spokesperson for the Khatam al-Anbia Central Headquarters of Iran, who made the actual claim of 500+ U.S. soldiers being killed/wounded.
https://www.tasnimnews.ir/en/news/2026/03/28/3551073/iranian-strikes-inflict-casualties-on-over-500-us-troops-spokesman#:~:text=Iranian%20Strikes%20Inflict%20Casualties%20on,commanders%20and%20soldiers%20for%20hours.
3. What secondary sources did you find (e.g., newspapers, magazines)? Only use secondary sources if sufficient primary sources are not available. For each source, write at least one or two sentences explaining what you learned. Include all links.
Another article from OneIndia also showed the video and added commentary on the event. The only related article from U.S. media was a PBS article that claimed only ~140 U.S. troops have been injured, albeit from March 10, however there haven't been any major updates or casualty reports since.
https://www.dailymotion.com/video/xa3iqx8
https://www.pbs.org/newshour/nation/pentagon-says-about-140-u-s-troops-have-been-injured-in-iran-war-so-far-8-severely
4. What potential biases or interests might each of your sources have?
The U.S. government likely has the most bias, since they would want to conceal the number of casualties in a foreign war that the vast majority of the population is opposed to. The U.S. government has delayed or hid casualty reports from the American people, such as in Vietnam, the Gulf War, War on Terror, etc. Iran may have some bias, considering how strongly their media is controlled by the dictatorship, and they might be seeking to demoralize and turn the American public against the war even further.
5. What evidence supports the claim you are fact-checking?
Not much, the only real evidence is the statement made by the the spokesperson for the Khatam al-Anbia Central Headquarters of Iran, who is closely associated with the Islamic Revolution Guards Corps.
6. What evidence undermines the claim you are fact-checking?
The lack of evidence undermines the claim that I'm fact checking, there have been no official or validated casualty reports from the Department of Defense or the U.S. government, so the entire claim is hard to validate or even track.
7. What happened when you tried contacting the person or group who made the original claim? (Always try to contact them—it’s okay if you don’t get a reply. For example, if the claim is that the president said something, try reaching out to the administration. If it was a Bluesky user, message that user on Bluesky.)
I wrote a comment on the original post, which was on Twitter/X, and haven't gotten a response.