I think they were warlike, but mainly my reasons for feeling this is :1 They had slaves. In the Bronze Age slavery was a result of warfare. What do you do with the prisoners? It became so profitable in other civs that the situation became reversed and you made war to attain slaves, and then sell them for a lucrative price.
#2 They amassed so much wealth and they had to protect it. This meant not only aggressive war mongering would probably evolve, but also defensive wars. They fought a war against Aegean pirates according to the myths. They swept the sea of pirates. I am sure the pirates didn't just shuffle off without a fight.
Mind you this is just my view from my interpretation of the myths, the art, surrounding cultures, and purely inductive, as i am not an archaeologist, nor an anthroplogist, but I have an MA in Ancient History and taught it, along with Ancient Literature for 43 years at a prestigious prep school.