The Japanese are helpless against the overwhelming power of the main Mongol army. One after another they fall before the endless hordes.  Even Kuchii is presumed dead after falling off a cliff...
It's what's left of a weapon.
إنه بقايا سلاح
Es ist der Überrest einer Waffe.
È ciò che rimane di un'arma.
Isto é o que sobrou de uma arma.