WASHINGTON -- President Barack Obama paid tribute yesterday to the men and women who have died defending America, pointing to Vietnam veterans as an underappreciated and sometimes maligned group of war heroes who remained true to their nation despite an unwelcome homecoming.

"You were sometimes blamed for the misdeeds of a few," Obama said at the Vietnam Veterans Memorial. "You came home and were sometimes denigrated when you should have been celebrated. It was a national shame, a disgrace that should have never happened."

He added, "Even though some Americans turned their backs on you, you never turned your back on America."

Marking Memorial Day at both the black granite wall honoring more than 58,000 soldiers who died in the Vietnam War and earlier at Arlington National Cemetery, Obama noted that for the first time in nine years, "Americans are not fighting and dying in Iraq," and the nation was winding down its role in the conflict in Afghanistan.

"After a decade under the dark cloud of war, we can see the light of the new day on the horizon," Obama said to an audience gathered at the Arlington amphitheater lined with American flags under a warm, brilliant sun.

In this election year, Obama said the nation must remain committed to providing for the families of fallen soldiers and help returning service members seeking jobs, higher education or health care benefits.

"As long as I'm president, we will make sure you and your loved ones will receive the benefits you've earned and the respect you deserve," Obama said. "America will be there for you."

Obama said sending troops into harm's way was "the most wrenching decision that I have to make. And I can promise you I will never do so unless it's absolutely necessary."

Meanwhile, presumptive Republican presidential nominee Mitt Romney promised to maintain an American military "with no comparable power anywhere in the world."

Appearing in San Diego with Sen. John McCain (R-Ariz.) Obama's 2008 opponent and a former Navy pilot who was a prisoner of war during the Vietnam War, Romney addressed a crowd of about 5,000.

The former Massachusetts governor warned against shrinking America's military in Europe's image and said the nation must have the world's strongest military to win wars and also prevent them.

Get the latest news and more great videos at NewsdayTV Credit: Newsday

Remembering Challenger disaster 40 years later ... LI Works: Keeping ice rink nice ... Get the latest news and more great videos at NewsdayTV

Get the latest news and more great videos at NewsdayTV Credit: Newsday

Remembering Challenger disaster 40 years later ... LI Works: Keeping ice rink nice ... Get the latest news and more great videos at NewsdayTV

SUBSCRIBE

Unlimited Digital AccessOnly 25¢for 6 months

ACT NOWSALE ENDS SOON | CANCEL ANYTIME