Casualties in War

In a previous post, I asserted that the number of US casualties in Iraq don't compare to those during the same 3 year time period during the Vietnam War 1965-68. Going by this it seems our struggle in Iraq has been wildly sucessful. Here are some thoughts from Powerline on the subject:

One wonders how past wars could have been fought if news reporting had consisted almost entirely of a recitation of casualties. The D-Day invasion was one of the greatest organizational feats ever achieved by human beings, and one of the most successful. But what if the only news Americans had gotten about the invasion was that 2,500 allied soldiers died that day, with no discussion of whether the invasion was a success or a failure, and no acknowledgement of the huge strategic stakes that were involved? Or what if such news coverage had continued, day by day, through the entire Battle of Normandy, with Americans having no idea whether the battle was being won or lost, but knowing only that 54,000 Allied troops had been killed by the Germans?
How about the Battle of Midway, one of the most one-sided and strategically significant battles of world history? What if there had been no "triumphalism"--that dreaded word--in the American media's reporting on the battle, and Americans had learned only that 307 Americans died--never mind that the Japanese lost more than ten times that many--without being told the decisive significance of the engagement?
Or take Iwo Jima, the iconic Marine Corps battle. If Americans knew only that nearly 7,000 Marines lost their lives there, with no context, no strategy, and only sporadic acknowledgement of the heroism that accompanied those thousands of deaths, would the American people have continued the virtually unanimous support for our country, our soldiers and our government that characterized World War II?