President Bush has assured Afghanistan of America’s unwavering support despite an imminent change in the White House. On the latest stage of his farewell foreign tour, Mr Bush flew to Kabul after his headline-making trip to Iraq. No shoes or insults here, just Afghanistan’s highest award for service to the country.Earlier, Bush had flown under cover of darkness to visit US troops at Bagram airbase. The president has always looked at home with America’s military personnel, seeming to enjoy their company more than affairs of state. Bush praised the progress made since the US-led invasion of Afghanistan seven years ago, while admitting there is much to be done. He has promised more troops to defeat the Taliban, a move also supported by his successor Barack Obama.