'If you're weak you'll get invaded': Poland prepares for war with Russia

On the frontline with Russia, Poland is now spending a massive $90 billion on defence, bolstered by a loan from the EU and multinational forces from Europe and the US stationed in the country. In Warsaw, the view is that the only way to stop Russia is deterrence.Meanwhile, Polish Prime Minister Donald Tusk has condemned what he calls the disintegration of NATO from within, declaring the greatest threat is not its external enemies.