When the English set fire to a Pequot village and massacred men, women and children, the Puritan theologian Cotton Mather said: "It was supposed that no less than 600 Pequot souls were brought down to hell that day."

On the eve of the Mexican War, an American journalist declared it our "Manifest Destiny to overspread the continent allotted by Providence." After the invasion of Mexico began, The New York Herald announced: "We believe it is a part of our destiny to civilize that beautiful country."

It was always supposedly for benign purposes that our country went to war.

We invaded Cuba in 1898 to liberate the Cubans, and went to war in the Philippines shortly after, as President McKinley put it, "to civilize and Christianize" the Filipino people.

As our armies were committing massacres in the Philippines (at least 600,000 Filipinos died in a few years of conflict), Elihu Root, our secretary of war, was saying: "The American soldier is different from all other soldiers of all other countries since the war began. He is the advance guard of liberty and justice, of law and order, and of peace and happiness."

We see in Iraq that our soldiers are not different. They have, perhaps against their better nature, killed thousands of Iraq civilians. And some soldiers have shown themselves capable of brutality, of torture.

Yet they are victims, too, of our government's lies.

How many times have we heard President Bush and Secretary of Defense Donald Rumsfeld tell the troops that if they die, if they return without arms or legs, or blinded, it is for "liberty," for "democracy"?

One of the effects of nationalist thinking is a loss of a sense of proportion. The killing of 2,300 people at Pearl Harbor becomes the justification for killing 240,000 in Hiroshima and Nagasaki. The killing of 3,000 people on Sept. 11 becomes the justification for killing tens of thousands of people in Afghanistan and Iraq.

And nationalism is given a special virulence when it is said to be blessed by Providence. Today we have a president, invading two countries in four years, who announced on the campaign trail last year that God speaks through him.

We need to refute the idea that our nation is different from, morally superior to, the other imperial powers of world history.

We need to assert our allegiance to the human race, and not to any one nation.

Howard Zinn, a World War II bombardier, is the author of the best-selling People's History of the United States (Perennial Classics, 2003, latest edition). He can be reached at pmproj@progressive.org. Thanks to Eva Dadlez for forwarding this piece.