Marchers protesting the U.S. occupation of Iraq tried to deliver a mock coffin to Secretary of Defense Donald Rumsfeld on Monday, but police kept them off Pentagon grounds. About 200 protesters marking the third anniversary of the U.S. invasion of Iraq marched from the Lincoln Memorial to the Pentagon, banging on drums and chanting anti-war slogans. The demonstrators chanted "Peace Now," and "No Iraqi is our enemy." Several of the protestors, in a premeditated act of civil disobedience, climbed a fence and were immediately taken into police custody. The coffin, draped in black bunting and decorated with photographs from the war, "represents the massive casualties we're seeing in the war in Iraq," Gordon Clark, of the group Iraq Pledge of Resistance, told the Associated Press.