Washington ? The Pentagon will hold a massive march and country music concert to mark the fourth anniversary of Sept. 11, Defense Secretary Donald Rumsfeld said in an announcement tucked into an Iraq war briefing Tuesday.

“This year the Department of Defense will initiate an America Supports Your Freedom Walk,” Rumsfeld said, adding that the march would remind people of “the sacrifices of this generation and of each previous generation.”

The march will start at the Pentagon, where nearly 200 people died on Sept. 11, and end at the National Mall with a show by country star Clint Black.

Word of the event startled some observers. “I’ve never heard of such a thing,” said John Pike, who has been a defense analyst in Washington for 25 years and runs GlobalSecurity.org.

The news also reignited debate and anger over linking Sept. 11 with the war in Iraq.

“That piece of it is disturbing since we all know now there was no connection,” said Paul Rieckhoff, an Iraq veteran who heads Operation Truth, an anti-administration military booster.

Rieckhoff suggested the event was an ill-conceived publicity stunt. “I think it’s clear that their public opinion polls are in the toilet,” he said.