belligerency
/bəˈlɪdʒ(ə)r(ə)ns/
noun
Aggressive or warlike behaviour.
Mortimer was eyeing Guy with belligerence
will to resist,power to resist,resistance,morale,spirit,courage,pluck,pluckiness,gameness,will to win,strength,backbone,spine,mettle,stout-heartedness,determination,firmness of purpose,resolution,resolve,resoluteness,confidence