Book 17
10.3
Now in the midst of these delays Suomarius, king of the Alamanni, of his own initiative met the Romans unexpectedly with his troops, and although he had previously been haughty and cruelly bent upon harming the Romans, at that time on the contrary he thought it an unlooked-for gain if he were allowed to keep what belonged to him. And inasmuch as his looks and his gait showed him to be a suppliant, he was received and told to be of good cheer and set his mind at rest; whereupon he completely abandoned his own independence and begged for peace on bended knee.
10.4
And he obtained it, with pardon for all that was past, on these terms: that he should deliver up his Roman captives and supply the soldiers with food as often as it should be needed, receiving securityThat is, he was to receive receipts from those in charge of the supplies, and show them to Julian. for what he brought in just like any ordinary contractor. And if he did not present it on time, he was to know that the same amount would again be demanded of him.