WikiLeaks is set to release another vast batch of information, which the whistle-blowing site claims will be seven times the size of its Iraq War Logs.
The site announced its forthcoming leak in a message on Twitter, appealing for donations to assist the group's work: "Next release is 7x the size of the Iraq War Logs. Intense pressure over it for months. Keep us strong," the missive reads.
WikiLeaks followed up with another tweet a short time later, stating: "The coming months will see a new world, where global history is redefined."
The site has given no hint as yet what the subject of the leak will be.
WikiLeaks' disclosure in October of US military secrets relating to the war in Iraq totalled nearly 400,000 classified documents.
The leak brought renewed condemnation from Pentagon sources, which claimed the information contained within the dossier could endanger the lives of US servicemen.
The site's organisers had faced widespread criticism after the earlier publication of WikiLeaks' Afghan War Diary, with opponents claiming the site had not taken sufficient care to redact the names and personal details of individuals mentioned in the documents, putting informants and other Afghan civilians at risk of reprisals.
Since the outing of the two sets of documents, WikiLeaks organisers have alleged that the site has faced a campaign of harassment orchestrated by US security services.
Founder Julian Assange has claimed that the rape charges he faces in Sweden, where some of WikiLeaks' servers are based, are politically motivated. According to the Australian journalist and activist, the accusations form part of a wider CIA campaign to discredit the site.
Last week, a Swedish court issued orders for Assange's detention over the allegations, which were made by two Swedish women Assange met after a lecture he gave in Stockholm during August. An international arrest warrant is expected to follow.
Björn Hurtig, Assange's Swedish lawyer said the Swedish authorities are in breach of the European Convention on Human Rights, having failed to adequately inform Assange of the accusations against him in his native language.