A parallel relationship

The wars against Carthage changed Rome. The Senate had gained in power and prestige relative to the people's assemblies, the Comitias Plebis. The Romans emerged from the Punic wars with the widespread understanding that ultimate authority over the military lay with the Senate, that it was the Senate's job to know, advise and guide, and the Senate's job to decide the question of war or peace and other foreign policy matters.

I'd like to know if "the question of war or peace and other foreign policy matters" is an object of "know, advise and guide."
Thank you in advance for your help.