Lure the Tiger Down the Mountain
Never directly attack a well-entrenched opponent. Instead lure him away from his stronghold and separate him from his source of strength.
Three Kingdoms Period China
In the year 199, Sun Ce had consolidated his newly conquered territories in the south and his next goal was the prosperous area of Lujiang to the north. However, Lujiang had a professional army and was well defended. In addition it also had the advantage of terrain, being accessible only through a couple of easily defended passes. Sun Ce's advisors cautioned against moving directly against such a well-entrenched and powerful state so they devised another scheme. Sun Ce sent an emissary laden with gifts and a letter to the king of Lujiang, Liu Xun. The letter praised the King's military skills and begged for his assistance. Sun Ce wrote: " For years the state of Shangliao has invaded my territory unhindered and carried away booty, yet we are too weak to launch a retaliatory raid. If Your Majesty would attack Shangliao we would give assistance and you could annex the state for yourself." Flattered and covetous of increasing his domains, The king of Lujiang disregarded the advice of his counselors and attacked the state of Shangliao. Several weeks later, while the king of Lujiang was busy laying siege to Shangliao's capital, Sun Ce attacked the almost undefended Lujiang and easily seized the capital. Without the expected support from Sun Ce, The king of Lujiang failed to take the capital of Shangliao and he returned only to find his own capital already in enemy hands. Sun Ce now had the advantage of the Lujiang terrain and the former king could do nothing but flee with his army.