By Tom McTague, Deputy Political Editor for MailOnline Britain will send 1,000 troops to lead a new 4,000-strong Nato 'spearhead' force headquartered in eastern Europe, it was confirmed today. David Cameron said the new multinational brigade based in Poland would ‘reassure’ eastern European allies that the threat from Russia was being taken seriously. The Prime Minister said the ‘reformed Nato response force’ would allow more exercises and ‘if necessary, rapid reinforcement’ if there was an invasion. Scroll down for video David Cameron, left, and NATO Secretary General Anders Fogh Rasmussen (right) today outlined plans for a rapid reaction force to be based in Poland
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The UK will contribute a quarter of the troops for the rapid reaction unit
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David Cameron said it would allow 'rapid reinforcement' in event of invasion
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Accused Putin of 'ripping up the rule book' over military incursion in Ukraine
‘As Russia tramples illegally over @placeholder, we must reassure our eastern European members that we will always uphold our article five commitments to collective self-defence.’