America's top military official is accusing the WikiLeaks website of giving the country's enemies valuable information. Joint Chiefs of Staff Chairman Admiral Mike Mullen issued the criticism late Saturday in a post on Twitter. Mullen also called the release of nearly 4 lakh classified US military documents from the Iraq war “irresponsible.”The founder of WikiLeaks defended the release at a news conference in London Saturday. Julian Assange, said the decision to release the documents “is about the truth” and that the documents contain no names or information harmful to any group or individual.Among the revelations, the documents indicate more than 100,000 people were killed following the U.S.-led invasion in 2003, and that more than 60 percent of them were civilians. They also report 15,000 unknown or unreported deaths.The U.S. military has also said the publication of the files could endanger the lives of American troops and their Iraqi allies.Meanwhile, WikiLeaks founder Julian Assange said on Israeli television he was taking security precautions following the release of nearly 400,000 secret US military documents on the Iraq war. The Israeli channel reported that Mr Assange was accompanied by bodyguards during the interview.