The Nato summit in Wales this September is "the perfect place" for the UK to urge allied forces to step up their response to military aggression from Russia, a member of the defence committee said.
Labour's Gisela Stuart admitted "state on state action was unlikely" but urged Nato to be ready to respond to threats like cyber attacks, "which may be coming from countries like Russia."
More top news
The leaking comes barely hours after Home Secretary Amber Rudd warned US authorities not to let slip details of the terror investigation.
A James Bond fan has shared a heartwarming memory of when he met actor Roger Moore.
Manchester United beat Ajax 2-0 to win their first Europa League title on an emotional night in Stockholm.