One of the most experienced and respected figures in a generation of American warfare and peacekeeping yesterday accused the US administration of 'failing to prepare for the consequences of victory' in Iraq. At the end of a week that saw a war of attrition develop against the US military, General William Nash told The Observer that the US had 'lost its window of opportunity' after felling Saddam Hussein's regime and was embarking on a long-term expenditure of people and dollars for which it had not planned. 'It is an endeavour which was not understood by the administration to begin with,'...