Prolonged

"In all history, there is no instance of a country having benefited from prolonged warfare. Only one who knows the disastrous effects of a long war can realize the supreme importance of rapidity in bringing it to a close."
--Sun Tzu (c.500-320 B.C.)
name used by the unknown Chinese authors of the sophisticated treatise on philosophy, logistics, espionage, strategy and tactics known as 'The Art of War'
Source: The Art of War