Read "Captive of the Centaurianess" by Poul Anderson online for free on Textopian. Full text with search, annotations, highlights, and AI-powered reading aids.
It took Dyann Korlas about two Earth-days to decide that she didn't like Ganymede.
The Jovians had been very courteous, apologized in a stiff way for the unfortunate misunderstanding aboard ship, and assigned her a brawny young sergeant as guide. Their armament was much more in evidence and much more interesting than Earth's but granting that spaceships and atomic bombs and guided missiles were more effective than swords and bows and mounted lancers, they took all the fun out of war and left nothing to plunder. She missed the brawling mirth of the war-camps of Varann among these bleak-faced and endlessly marching men in their drab uniforms.