Who cares for Sun Tzu. Here are the words of Hurin from the Battle of Unnumbered Tears.

“Last of all Hurin stood alone. Then he cast aside his shield, and wielded an axe two-handed; and it is sung that the axe smoked in the black blood of the troll-guard of Gothmog until it withered, and each time that he slew Hurin cried: 'Aure entuluva! Day shall come again!'”