Citation Hunt

The Wikipedia snippet below is not backed by a reliable source. Can you find one?

Click I got this! to go to Wikipedia and fix the snippet, or Next! to see another one. Good luck!

In page 5th Division (North Korea):

"

On October 26, three battalions of the 5th Division had silently crept close to the hill positions of the 1st Battalion, 1st Marine Regiment, guarding a supply dump near Kojo. They attacked so swiftly at one platoon position that fifteen marines were killed there - seven in their sleeping bags. Before noon of the 28th, the 5th Division moved off west into the hills and the fight was over. The marines recovered their dead and counted their losses - 27 killed, 39 wounded and 3 missing.[3]