My father in law was severely injured on March 17, 1967 during Operation Junction City. I'm trying to dig up information so that I can share his incredible story and I thought someone here could help. He was a member of the 4th infantry division and injured on the above date. Any help is much appreciated.

Operation Junction City

Looks like the link you posted contains a wealth of information about the operation. I was in Vietnam at the same time, in fact, I came home on 18 April 1967 (With the 1st Cav.) I would suggest you just continue to search for links on Google, and You Tube...search by name of operation, name of your father's infantry unit, 4th Infantry...continue digging and you will be surprised where links will take you. Also contact the 4th Infantry Division web site for specifics and history of the Division.
Keep trying-- that's what I have done and I still find things on my experiences after all these years.
Good luck.