Thanks for sharing that link. I've forwarded to my friends and family. Here is the web page for the people that put it together. And here's a little bit about them:
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GCS has also recently made web space available for some very moving tributes to our brave men and women of the military. Please view these under the Support America section of our website. Thank you for taking an interest in GCS and we invite you to join them in celebrating those who have, who do, and who will defend our country. </font>
There are more tributes like "Until Then" on their site. "To Our Parents" is a moving tribute to veterans of the Vietnam War.
That isn't US Military equipment. Looks like a civilian tractor w/a loader on the rear. Likely a local they hired to do some improvements in the troop area.