The phrase "advisory mission" is correct and usable in written English.
It can be used to describe a task or role that involves providing guidance or recommendations, often in a professional or organizational context.
Example: "The team was sent on an advisory mission to help improve the efficiency of the local government."
Alternatives: "consultative role" or "guidance assignment".
Success in an advisory mission starts with the right mindset.
Since it arrived in Iraq in July for its advisory mission, two of its soldiers have been killed.
It maintains a discreet training and advisory mission, conducts secret operations with local forces and has fired cruise missiles at suspected terrorists.
Even though Iraqi soldiers and policemen are still dying at the hands of insurgents, the focus of the American advisory mission will shift toward preparing Iraq's national defenses.
The United States has operated a large training and advisory mission for half a century and its several Patriot missile sites protect the kingdom from outside attacks.
Last year the highly nation alistic military Government of Peru expelled a 70‐man United States military advisory mission that had worked closely with the armed forces.
He instead limited America's military role to advisory missions.
He went on to personally teach the technology to farmers and governments in advisory missions to many nations.
In 1948 President Harry S. Truman appointed him to direct the military advisory missions to Greece and Turkey, where he played a vital role in the defeat of communist guerrillas.
The U.N. Educational & Scientific & Cultural Organization sent advisory missions of seismologists, urban planner, & earth quake engineers to discuss a long-term U. N. program.
But all too often when the conventional military is forced to assign leaders to "combat" versus "advisory" missions, the best are sent to fight while marginal performers are relegated to train and advise.
