This retired navy SEAL did some research on Nathan Phillips:
Not a Vietnam Vet He Was a Mechanic Who Went AWOL THREE TIMES
https://www.thegatewaypundit.com/2019/01/retired-seal-nathan-phillips-not-a-vietnam-vet-he-was-a-refrigerator-mechanic-who-went-awol-three-times/?omhide=true