Anti-war activists in the US are today staging more than 300 different events.The actions follow the news that the death of an army sergeant pushed the American military death toll in Iraq to 2,000.US public support for the military involvement in Iraq has been falling, driving down the popularity of President George W. Bush in opinion polls. Delivering a speech to military wives in Washington yesterday, the president said US soldiers had a mission to “lay the foundation of peace by spreading freedom”. He warned more would pay with their lives before any troop withdrawal.“A time of war is a time of sacrifice, and the greatest burden falls on military families. We’ve lost some of our nation’s finest men and women in the war on terror,” Bush said. Bush also hailed what he called “inspiring progress towards building a democracy,” as official results showed Iraqis approved the new constitution in a referendum two weeks ago. Shi’ites in Najaf celebrated after the announcement that nearly four in five people who voted had backed the constitution. Several Shi’ite and Kurdish regions recorded “Yes” votes of more than 95 per cent. Some prominent Sunni Arab leaders have claimed there was widespread fraud.