LONDON (Reuters) – British armed forces minister James Heappey said on Tuesday he did not think there was an imminent threat of escalation in the war in Ukraine, dismissing comments by Russian foreign minister Sergei Lavrov as bravado. Earlier Lavrov told the world not to underestimate the considerable risks of nuclear conflict, and said NATO’s supply of weapons to Ukraine “in essence” meant that the Western alliance was engaged in a proxy war with Russia. “Lavrov’s trademark over the course of 15 years or so that he has been the Russian foreign secretary has been that sort of bravado. I don’t…