Lord Robertson says diplomatic tone from White House is at ‘historic low’ and two allies are likely to keep diverging UK politics live – latest updates Lord Robertson says diplomatic tone from White House is at ‘historic low’ and two allies are likely to keep diverging UK politics live – latest updates Britain’s high military dependence on the US “is no longer tenable” and the UK has to become increasingly independent of the special relationship with Washington, a former Nato chief has warned.