Space Viking by H. Beam Piper

Prince Trask of Tanith and Prince Simon Bentrik were dining together on an upper terrace of what had originally been the mansion house of a Federation period plantation. It had been a number of other things since; now it was the municipal building of a town that had grown around it, which had, somehow, escaped undamaged from the Dunnan blitz. Normally about five or ten thousand, the place was now jammed with almost fifty thousand homeless refugees from half a dozen other towns that had been destroyed, overflowing the buildings and crowding into a sprawling camp of hastily built huts and shelters, and already permanent buildings were going up to accommodate them. Everybody, locals, Mardukans and Space Vikings, had been busy with the work of relief and reconstruction; this was the first meal the two commanders had been able to share in any leisure at all.

Prince Bentrik's enjoyment of it was somewhat impaired by the fact that from where he sat he could see, in the distance, the sphere of his disabled ship.