mercenary

nouns

a person hired to fight for another country than their own
mercenary, soldier of fortune

adjectives

marked by materialism
materialistic, mercenary, worldly-minded
serving for wages in a foreign army
"mercenary killers"
free-lance, freelance, mercenary
profit oriented
"a commercial book"; "preached a mercantile and militant patriotism"- John Buchan; "a mercenary enterprise"; "a moneymaking business"
mercantile, mercenary, moneymaking