The ROKS were the most feared in Vietnam. Even our guys were uneasy around them.
A lot of those guys lost parents and siblings to the Communists in the Korean War.
As a result, many of them took the opportunity to fight Communists in Vietnam extremely personally. They weren't there just to win, they were there to exact revenge for their loved ones.
Really? No argument that White Horse was the safest area (ROK controlled) in Nam - but allied troops "uneasy"? Not my experience. Nam - 66 - 70.