The routed Tsushima forces flee towards the capital, with the Mongols in pursuit. Kuchii rallies them and persuades them to attack, slaying an important Mongol general.  Even after a great defeat, now is the time to attack, not retreat.
That's why he died.
لهذا مات
Deshalb ist er nun tot.
Ecco perché è morto.
É por isso que ele morreu.