The US has briefed a number of unfamiliar governments, inclusive the UK, about the probable let go of tactful files by whistleblower site Wikileaks.
Reports say Turkey, Israel, Denmark and Norway have moreover been warned to design future annoyance from the leaks.
The tip US army leader Adm Mike Mullen mentioned the let go of tactful cables was "extremely dangerous" and could put lives at risk.
Wikileaks has mentioned the US authorities are fearful of being hold to account.
It has not fixed precisely when the papers will be done public.
The website, founded by Julian Assange, mentioned progressing this week that the let go would be scarcely 7 times incomparable than the scarcely 400,000 Pentagon papers connected to the Iraq fight it published in October.
Analysts say the US and its allies have the future to be ashamed by the announcement of frank assessments of unfamiliar governments by its officials.
State subdepartment orator PJ Crowley warned on Wednesday that the let go could break certitude in the US as a tactful partner.
"When this certainty is tricked and ends up on the front pages of newspapers or lead stories on radio or radio, it has an impact," he said.
'Exposing lives'
In an talk with CNN to be announce on Sunday but expelled as a transcript, Adm Mullen mentioned Wikileaks' activities were "extremely dangerous".
"We live in a world where only a small bitty square of data may be updated to a network of data and unequivocally open up an bargain that only wasn't there before," he said.
Adm Mullen mentioned the papers would discredit the lives of US infantry and people using them, both in Afghanistan and elsewhere.
"I would hope that the who are accountable for this would, at a few indicate in time, consider the shortcoming that they have for lives that they're exposing," he said.
A orator for UK Prime Minister David Cameron mentioned on Friday: "Obviously, the supervision has been briefed by US officials, by the US ambassador, as to the expected calm of these leaks.
"I do not wish to speculate about precisely what is going to be leaked before it is leaked."
The BBC's Steve Kingstone, in Washington, says the state subdepartment is evidently in high gear, contacting embassies around the world.
The media does not nonetheless know precisely what Wikileaks has - in what could be up to 3 million papers - and it is probable that the state subdepartment does not know precisely what the site has either, our match says.
Newspaper reports indicate the let go will add papers suggesting that Turkey helped al-Qaeda militants in Iraq, and that the US helped Iraq-based Kurdish separatists who have been intent in a long strife with Turkey.
The Russian unfamiliar method told Interfax headlines group that Moscow had not been strictly contacted by the US state subdepartment over the probable trickle of tactful correspondence.
But Russia's Kommersant journal mentioned the expected let go enclosed discussions between US diplomats and Russian politicians and "unflattering" opinions of a few of the latter.
The let go is moreover considered to add cables regarding Israeli-American relations.
'Absolutely awful'
Washington's envoy to Iraq, James Jeffrey, is quoted by AFP headlines group as adage Wikileaks is an "absolutely horrible impediment" to US efforts to erect certitude with other nations.
"I do not comprehend the determination for releasing these documents," he told reporters in Baghdad. "They will not help, they will simply harm our capability to do our work here."
The source of the papers potentially entangled in the ultimate Wikileaks let go is not known.
However, US Army Private Bradley Manning, a army researcher who was arrested in June on guess of leaking personal data, is now in control available trial.
He is purported to have abused access to a secret-level network to get hold of tens of thousands of US state subdepartment cables, a few of them classified.
