Armed officers seized the men following months of surveillance and ahead of events honouring the nation's war dead tomorrow. Police had already stepped up security after a terrorist shot a soldier guarding a war memorial at Canada's parliament. And a ring of steel will be thrown around Whitehall tomorrow as the Queen leads events at the Cenotaph marking the centenary of the start of the First World War. The timing of the raids - which Scotland Yard says were linked to 'Islamist-related terrorism' - raised fears of a Remembrance Day outrage. The use of armed officers also suggests police chiefs fear the suspects may have acquired weapons.
