Cumbrian MP Rory Stewart says the UK should consider sending troops to Poland to counter threats from Russia.
The politician has just been given the power to influence Britain's place in the world with his appointment as elected chair of Parliament's powerful Defence Committee.
In an exclusive interview with ITV Border, he said recent events in Ukraine felt like a return to the cold war, and that Britain had to respond.
Our Political Correspondent Paul Brand asked him why he was saying what other politicians wouldn't.
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Alex Salmond announced he will stand down as Scotland's First Minister and SNP leader after voters rejected independence in the referendum.