“It did not point to anything that has actually happened as a result of the release,” Mr. Assange said. “It contains the analyst’s best guesses as to how the information could be used to harm the Army but no concrete examples of any real harm being done.”

WikiLeaks, a nonprofit organization, has rankled governments and companies around the world with its publication of materials intended to be kept secret. For instance, the Army’s report says that in 2008, access to the Web site in the United States was cut off by court order after Bank Julius Baer, a Swiss financial institution, sued it for publishing documents implicating Baer in money laundering, grand larceny and tax evasion. Access was restored after two weeks, when the bank dropped its case.

Governments, including those of North Korea and Thailand, also have tried to prevent access to the site and complained about its release of materials critical of their governments and policies.

The Army’s interest in WikiLeaks appears to have been spurred by, among other things, its publication and analysis of classified and unclassified Army documents containing information about military equipment, units, operations and “nearly the entire order of battle” for American forces in Iraq and Afghanistan in April 2007.

WikiLeaks also published an outdated, unclassified copy of the “standard operating procedures” at the military prison in Guantánamo Bay, Cuba. WikiLeaks said the document revealed methods by which the military prevented prisoners from meeting with the International Red Cross and the use of “extreme psychological stress” as a means of torture.