Virginia ? U.S. servicemen and women are “tracking the enemies of freedom” in the war on terror and bringing them to justice, Vice President Dick Cheney said Friday at a Veterans Day ceremony at Arlington National Cemetery.

Cheney laid a wreath at the Tomb of the Unknowns and told a crowd at the cemetery’s Memorial Amphitheater that U.S. forces have taken down two dictatorships and liberated 50 million people, an apparent reference to Iraq and Afghanistan.

“Difficult missions are still to come, and we cannot know every turn that lies ahead. Yet we can be certain that by the resolve of our country, by the rightness of our cause and by the character of our fighting forces, we will prevail,” he said.

Cheney was substituting at the event for President Bush, who was giving a speech in Pennsylvania defending the war on terror and invasion of Iraq.