The UK's special envoy in Baghdad Jeremy Greenstock on 2 December told foreign diplomats, contractors and aid workers operating in Iraq to improve their security. He said that the wave of attacks against foreign 'soft' targets could indicate that militants are trying to destabilise the coalition by striking at its weakest points. 'People have to be very careful - The Spaniards and the Japanese who were killed this week were not following the strictest possible protection rules,' Greenstock told the BBC. 'There is not a strategic military threat. There is no way in which we can be militarily defeated here'.