WikiLeaks founder Julian Assange at a press conference in London on Monday

JULIAN ASSANGE: " This material doesn't just reveal abuses, this material describes the past six years of war, every major attack that resulted in someone being detained or someone being killed."

WikiLeaks is a nonprofit organization that publishes documents from governments and businesses. It released the military documents on Sunday. It gave early copies to three news organizations in the United States, Germany and Britain.

The White House is urging WikiLeaks not to not publish any more classified documents about the Afghan war.

In April, the site posted video of an American helicopter strike in Iraq in two thousand seven. That attack killed two Iraqis working for the Reuters news agency.

An American soldier is charged with releasing that video. Army Private Bradley Manning has also come under interest in the latest release of documents.

Afghan War Diary on WikiLeaks

Some of the documents suggest that members of Pakistan's Inter-Services Intelligence agency are helping insurgent groups in Afghanistan.

Pakistan denies that. And Senator John Kerry, chairman of the Senate Foreign Relations Committee, says: "These are not new allegations."

JOHN KERRY: "We have been wrestling with these allegations, and we have made some progress."

But a vote in Congress this week showed weakening support for President Obama's war policy among members of his own party.