Less than 50,000.
The Cabinet
"Advisors" is misleading. When did the first military advisors dedicated to advising combat operations is what most are wanting to ask.
1954 A+
8500
There are roughly 15,500 financial advisors. Unknown number of support / institutional employees.
Sure, many farmers use financial advisors. Many farmers use advisors to help them get their finances in order. Farmers often work for themselves so advisors help them plan for retirement, and make important business decisions involving large amounts of capital.
US military advisors were training the ARVNs in April 1956 in Vietnam. There was no "US invasion."
There are different types of advisors for specific subjects. These advisors are experts and often practitioners in the same field. Some examples of advisors are financial advisors, insurance advisors, health care advisors and medical advisors.
Only what his father and advisors taught him. Many Kings were deliberately misled and used by their advisors .
Same as US; instruction.
Research: The Vietnam War Service Index, and The American War Library. In June of that year there were 740 Advisors. The total number of US Military present in country at that time was considerably higher.