The anti-war movement has lived under the shadow of that immense mobilisation too. But it was followed the next month by the biggest demonstration against a war British troops were actually fighting, by the biggest-ever weekday march (against the Bush visit to London later in 2003), by an unprecedented movement of military families against the war, and by a dozen further marches - including one which will mark the fifth anniversary of the war itself, on March 15. Opposition to empire has been put at the heart of politics as never before.