Four-Day Planet by H. Beam Piper

When the _Pequod_ surfaced under the city roof, I saw what was cooking. There were twenty or more ships, either on the concrete docks or afloat in the pools. The waterfront was crowded with men in boat clothes, forming little knots and breaking up to join other groups, all milling about talking excitedly. Most of them were armed; not just knives and pistols, which is normal costume, but heavy rifles or submachine guns. Down to the left, there was a commotion and people were getting out of the way as a dozen men come pushing through, towing a contragravity skid with a 50-mm ship's gun on it. I began not liking the looks of things, and Glenn Murell, who had come up from his nap below, was liking it even less. He'd come to Fenris to buy tallow-wax, not to fight a civil war. I didn't want any of that stuff, either. Getting rid of Ravick, Hallstock and Belsher would come under the head of civic improvements, but towns are rarely improved by having battles fought in them.

Maybe I should have played dumb and waited till I'd talked to Dad face to face, before making any statements about what had happened on the _Javelin_, I thought. Then I shrugged that off. From the minute the _Javelin_ had failed to respond to Dad's screen-call and the general call had gone out to the hunter-fleet, everybody had been positive of what had happened. It was too much like the loss of the _Claymore_, which had made Ravick president of the Co-op.