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Chelsea Manning

Chelsea Manning is a U.S.

By Ethan Anderson| Reviewed by Olivia Bennett, Standards & Fact-Checking Lead| Updated July 26, 2026|2 min read| Fact-checked

Chelsea Manning is a U.S. whistleblower, activist, and former U.S. Army intelligence analyst. She became widely known for providing classified military and diplomatic documents to WikiLeaks, leading to a court-martial, imprisonment, and a later sentence commutation by President Barack Obama.

Early life and military service

Chelsea Manning was born in Oklahoma in 1987 and served as an intelligence analyst in the U.S. Army. During that service, she had access to classified information that later became central to the WikiLeaks disclosures.

WikiLeaks disclosures

Manning is known for transferring large quantities of classified U.S. military and diplomatic material to WikiLeaks in 2009 and 2010. The disclosures drew global attention for their scale and for the political debate they sparked about transparency and security.

Court-martial and imprisonment

After her arrest in 2010, Manning was tried by court-martial and sentenced in 2013 to 35 years in prison. The sentence was later commuted by President Obama in 2017, reducing the time served to about seven years. Manning was imprisoned again in 2019 on a civil contempt charge related to a grand jury investigation into WikiLeaks, and was released the following year.

Public life and activism

Following release, Manning became associated with activism on transparency, civil liberties, and transgender rights. She has also remained a public figure in U.S. political and media discussions.

Key facts

  • Provided hundreds of thousands of classified documents to WikiLeaks, including material related to the wars in Iraq and Afghanistan.
  • Arrested in 2010 while serving in Iraq and later court-martialed by the U.S. Army.
  • Sentenced in 2013 to 35 years in prison, along with a reduction in rank and a dishonourable discharge.
  • President Barack Obama commuted the sentence in 2017 after Manning had spent nearly seven years in custody.
  • Imprisoned again in 2019 on a civil contempt charge related to a grand jury investigation into WikiLeaks, and released the following year.
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Canadian context

Canadian readers may know Manning through international coverage of WikiLeaks, U.S. military transparency debates, and broader discussions of whistleblowing, press freedom, and transgender rights.

Frequently asked questions

Who is Chelsea Manning?
Chelsea Manning is an American whistleblower, activist, and former U.S. Army intelligence analyst best known for leaking classified documents to WikiLeaks.
What did Chelsea Manning disclose?
She provided WikiLeaks with large amounts of classified military and diplomatic material, including records related to the Iraq and Afghanistan wars.
What was Chelsea Manning sentenced to?
In 2013, she was sentenced to 35 years in military prison, plus reduction in rank and a dishonourable discharge.
Was Chelsea Manning pardoned?
No. Her sentence was commuted by President Barack Obama in 2017, which reduced the prison term rather than erasing the conviction.
Why is Chelsea Manning significant?
She is one of the most prominent whistleblowers in modern U.S. history and a central figure in debates about secrecy, accountability, and whistleblower protections.

References

  1. Encyclopaedia Britannicahttps://www.britannica.com/biography/Chelsea-Manning
    Supports: Birth date, identity as U.S. Army intelligence analyst, and role in releasing classified documents to WikiLeaks.
  2. EBSCO Research Startershttps://www.ebsco.com/research-starters/biography/chelsea-manning
    Supports: Leak to WikiLeaks, arrest in 2010, 2013 court-martial, and commutation by President Obama.
  3. Amnesty International UKhttps://www.amnesty.org.uk/chelsea-manning-wikileaks
    Supports: Sentence, prison time served, commutation, and later advocacy context.
  4. NPRhttps://www.npr.org/2022/10/17/1129416671/chelsea-manning-wikileaks-memoir-readme
    Supports: Size of the leak, sentencing, commutation, and later civil contempt imprisonment in 2019 and release in 2020.
  5. American Civil Liberties Unionhttps://www.aclu.org/news/free-speech/chelsea-manning-case-timeline
    Supports: Arrest timeline and disclosure context.
  6. Open Society Justice Initiativehttps://www.justiceinitiative.org/litigation/united-states-v-private-first-class-chelsea-manning
    Supports: Case background, allegations, sentencing, and commutation.