A leading military lecturer has told talkRADIO that Donald Trump's threats over Nato should serve as a "wake-up call" for the other members of the alliance.
Mr Trump has questioned the value of Nato and suggested the US might not come to the aid of an ally in a time of need. This has prompted a stern rebuke from Nato secretary-general Jens Stoltenberg, who wrote in The Observer that going it alone is not an option for the US.
Dr Peter Caddick-Adams suggested that Mr Trump's election should make other member states think again about their financial contributions and their commitment to the alliance. He told Julia Hartley-Brewer:
"The populations of the three Baltic states, Poland and Ukraine... are hugely worried. My friends in the Ukraine are now undergoing air raid practices and the siren sound in the major Ukrainian cities, everyone has an air raid station to go to. That's the state of play."
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