Belligerent

Word meaning -
http://www.merriam-webster.com/dictionary/belligerent
1. waging war; specifically : belonging to or recognized as a state at war and protected by and subject to the laws of war
2: inclined to or exhibiting assertiveness, hostility, or combativeness

Usage examples -
In 1896 Alfred Nobel, a Swedish industrialist who had grown super-rich by inventing dynamite and developing it into a universal tool for both beneficial and belligerent purposes, died at the age of 63.

Mnemonics -
Beneficial and belligerent sound like opposite terms.

Belligerent Bulldog with an Array of Assorted Weaponry
Belligerent Bush calls Iranian Leader Belligerent


Additional notes -
Taken from http://www.merriam-webster.com/dictionary/belligerent

synonyms belligerent, bellicose, pugnacious, quarrelsome, contentious mean having an aggressive or fighting attitude. belligerent often implies being actually at war or engaged in hostilities . bellicose suggests a disposition to fight . pugnacious suggests a disposition that takes pleasure in personal combat . quarrelsome stresses an ill-natured readiness to fight without good cause . contentious implies perverse and irritating fondness for arguing and quarreling .

Belligerent God -