The Roman History · Amm. 20.6.1

While these transactions were proceeding in Gaul, to the great anxiety of many, the fierce king of Persia (the advice of Antoninus being now seconded by the arrival of Craugasius), burning with eagerness to obtain Mesopotamia, while Constantius with his army was at a distance, crossed the Tigris in due form with a vast army, and laid siege to Singara with a thoroughly equipped force, sufficient for the siege of a town which, in the opinion of the chief commanders of those regions, was abundantly fortified and supplied.

Ammianus Marcellinus · translated by C. D. Yonge · 1911 reprint
C. D. Yonge translation (preface dated February 1862); G. Bell and Sons, 1911; Project Gutenberg #28587
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