The United States is lobbying to put an American, possibly a general, in charge of all UN peacekeeping operations in a move that could offer Washington an exit strategy in Iraq.The unprecedented US bid for the top UN peacekeeping post would place an American in command of the 95,000 UN peacekeepers in trouble spots from Lebanon to Sudan. The American lobbying effort is set to prove hugely controversial. If successful, the change would amount to a radical remaking of the organisation, bringing it closer to its origin in the Second World War as a US-led alliance. It is also stirring...