military adviser
military advisor

He was military advisor to the government of Kazakhstan in 1991.

After his release he served as a military advisor in Egypt.

He spent part of 1959 in Vietnam as a military advisor.

Did they even have a military advisor for this film?

My other military advisors don't think they could handle the Indians alone.

Of course, she was but his science officer and not a military advisor, so no recommendation would go without punishment.

Both sides in the conflict made use of German military advisors.

The President told reporters he had complete faith in his military advisors.

A government doesn't ask for military advisors when everything is going smoothly, does it?

The king's economic and military advisors in particular remained reluctant.