This seems like this would be something hard to screw up, but some how DOD found a way to do just that. Kudos to Hal and Edward Barker at the Korean War Project for identifying these errors:
The US Congress has urged the US Defense Department to take immediate measures to fix more than 1,000 errors on the Washington memorial wall erected to remember service members and Korean augmentees killed during the Korean War.
Six bipartisan lawmakers, including chair of the House Committee on Armed Services Mike Rogers, on March 2 sent a letter to US Secretary of Defense Lloyd Austin.
“We find these errors deeply concerning and write to seek accountability on how the Remembrance Wall’s glaring flaws went unnoticed until post-construction,” the letter to Austin read.
The Wall of Remembrance at the Korean War Veterans Memorial in Washington was unveiled to the public on July 27 last year, marking the anniversary of the armistice agreement that brought a cessation to the three-year Korean War.
The Defense Department in January conceded there were inaccuracies on the Wall of Remembrance that features names of more than 36,000 American service members and more than 7,000 Korean augmentees who died in the theater during the 1950-53 Korean War. It pledged to correct the mistakes in coordination with the Interior Department, explaining that the US military had reviewed every name on the Korean War Casualty List before engraving the wall.
The Pentagon apology came after Edward Barker and Hal Barker, who spent decades researching the Korean War and who operate an online repository of information about the war, first pointed out that the wall contained more than 1,000 spelling errors. The names of 245 late service members who were unrelated to the war were included, and around 500 names that should have been featured on the wall were not inscribed.
Korea Herald
You can read more at the link.