On the other hand, he knew from military history that wars almost never occurred overnight.

Each star system served as independent nation; war had occurred between these "countries" several times in the past.

First, war must occur for a good and just purpose rather than the pursuit of wealth or power.

The Libyan civil war of 1791-1795 occurred in those years.

Civil wars with many different sides all fighting each other have occurred.

It was there that the rebellion and the war occurred.

The agreement was based on the assumption that a war would occur not before three years.

After years of conflict, on October 23, 2077, a global nuclear war occurs.

Everything added up to the fact that the atomic war had never occurred.

But if war should occur, there are others already under arms.