Sentence:  The core Ice Age cast—wooly mammoth Manny (Ray Romano), sabertooth tiger Diego (Denis Leary), and sloth Sid (John Leguizamo)—are set adrift, sailing the high seas on a chunk of ice until they collide with a <WSD>bellicose</WSD> primate (Peter Dinklage). 
Meaning of the word marked with <WSD> tags:  Warlike in nature; aggressive; hostile.