I have been out of the Marine Corps over 20 yrs now. I purchased a M-65 field jacket and was thinking about adding my Unit patch, 26th Marine Expeditionary Patch, etc, etc. I believe there are certain rules and regulations regarding where unit patches go. Such as if you served in Combat, the patch is worn on a particular area of the jacket....Any suggestions on where I could attain this information would be much appreciated!....