As the war progressed however it became a war of conquest.

Indeed, the region was quite prosperous during that period, past the recovery from the war of conquest.

He presented missions as a war of conquest and not as a mere wrecking expedition.

These three centuries are characterized by acts of war of conquest times and the historical penumbra colonial times.

Via thought helmets the invaders extract information from them about their fellow earthlings to further the war of conquest.