In a new book he also criticized George W Bush for not managing differing opinions among his advisers more ably, and claims the president's policy was sometimes not properly implemented.
In his forthcoming memoir Known and Unknown, the title of which is taken from a famous Rumfeld-ism, he admits regretting saying "stuff happens" about the looting that beset Baghdad in the days after Saddam Hussein's fall.
He also said that saying "we know where they are" about weapons of mass destruction, which were never found, was a mistake, along with referring to Germany and France, both critics of the war, as "old Europe".
The Washington Post reported that Mr Rumsfeld also accepted that during the invasion "there may have been times when more troops could have helped". But he insisted that senior military officers never made their reservations about the size of the invading force known to him.
the rest of this nauseating statement is at -
http://www.telegraph.co.uk/news/worldnews/northamerica/usa/us-politics/8300073/Donald-Rumsfeld-regrets-harsh-Iraq-war-comments.html?sms_ss=facebook&at_xt=4d4a53a091d97a8e%2C0