"[1] Curtis is an established author on UK foreign and aid policy, and Kennard is a journalist who formerly worked at the Financial Times and wrote for numerous other newspapers.

[4] Kennard is an investigative journalist and author who has previously written for news outlets such as The Guardian, the Financial Times, openDemocracy and The Intercept, usually focusing on Britain's role on the international stage.

[5] Curtis is a historian and journalist who has written extensively about post-Second World War period foreign policy of the British government, publishing numerous works on the subject.

[7] Board members at Declassified include South African former MP Andrew Feinstein and former Guardian security editor and defence correspondent Richard Norton-Taylor; its advisors include former Guardian associate foreign editor Victoria Brittain, activist and musician Lowkey, American journalist Glenn Greenwald and Italian journalist Stefania Maurizi.

The British media are less and less mainstream – and are if anything becoming even more embedded in the establishment, regularly amplifying extremist policies that support war, human rights abusers and corporations contributing to catastrophic climate change.

"[8][excessive quote] In August 2020, Declassified published a story about a British soldier, Ahmed Al-Batati, being investigated by the Royal Military Police for protesting UK arms sales to Saudi Arabia.

[11] On 8 September 2021, in the wake of the final withdrawal of the United States troops from Afghanistan, Phil Miller reported that "a Cold War-era file on Margaret Thatcher's support for the Afghan mujahideen" was being censored by the UK government.

[12] On 3 January 2022, Richard Norton-Taylor reported that "British warships deployed to the South Atlantic after Argentina's invasion of the Falkland Islands in 1982" were armed with 31 nuclear depth charges.

[17][18] In addition, the International Press Institute wrote a letter to the MoD and the Defence Secretary, Ben Wallace, asking them to clarify the reason for the blacklisting.