Arab leaders must decide whether they are prepared to act on behalf of peace.

A person who acts on behalf of another for a specific purpose.

An agency is an organization which acts on behalf of others.

He is free to act on behalf of the forgotten American.

The school did its best to act responsibly on behalf of the students we love.

This committee had full power to act on behalf of the government while the legislature was not in session.

The committee, acting on behalf of the whole, cut the best deal possible that it could.

These terrorists have no authority to act on behalf of any people, race or religion.

We have been acting on behalf of these two committees.

"Could they be acting on behalf of a higher authority?"