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."
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Rain will affect most of the UK today, with Scotland remaining largely fine and brighter spells appearing in the east and south.
In a searingly emotive address, the president cast Hillary Clinton as the most qualified candidate to unify America as next US president.
The release is the second batch in a series of leaks that have rattled the Democratic Party.